HSA Natural Science Mega Mock Test : 2022 [കലാശക്കൊട്ട് ]

🛑 Questions : 332

🛑 Time : NO LIMIT

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1) Isogametes of [NCERT PG NO 10, FIG 1.5]

A) Fucus

B) Cladophora

C) Both A & B

D) Homosapiens

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2) മലബാറിൽ പാശ്ചാത്യ വിദ്യാഭ്യാസത്തിന് അടിസ്ഥാനമിട്ടത്?

A) ലണ്ടൻ മിഷൻ സൊസൈറ്റി

B) ബാസൽ ജർമൻ ഇവാഞ്ചലിക്കൽ മിഷൻ

C) ദി സൊസൈറ്റി ഓഫ് ജീസസ്

D) സിഎംഎസ് മിഷൻ

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3) Seminal plasma is rich in which sugar? [NCERT PG NO 44]

A) Lactose

B) Sucrose

C) Fructose

D) Glucose

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4) Plasma without clotting factor is called ?

A) Serum

B) Lymph

C) Semen

D) Tissue

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5) How many % of Blood is plasma?

A) 55%

B) 90-95

C) 60%

D) 99-99%

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6) The term ecosystem was coined by

A) AG Tansley

B) E Haeckel

C) EP odum

D) E Warming

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7) An inverted pyramid of biomass can be found in which ecosystem ?

A) Forest

B) Tundra

C) Marine

D) Grassland

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8) In a pond ecosystem, the autotrophic components are ?

A) Submerged and marginal plants

B) Algae

C) All of the above

D) Phytoplankton

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9) Most critical event in sexual reproduction is [NCERT PG NO 14]

A) Gametogenesis

B) Zygote formation

C) Gamete transfer

D) Fertilisation

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10) A secondary metabolite that is alkaloid in nature is _______ ?

A) Abrin

B) Codeine

C) Gum

D) Anthrocyanin

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11) Systemic heart refers to ?

A) The heart that contracts under stimulation from nervous system

B) Left auricle and left ventricle in higher vertebrates

C) Entire heart in lower vertebrates

D) The two ventricles together in humans

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12) in a living body coagulation of blood in the blood vessel is prevented by ?

A) Heparin

B) Prothrombin and Calcium together

C) Prothrombin

D) Plasminogen and Calcium together

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13) What is the amount of average price tag on nature's life support services determined by Robert Constanza and his colleagues__?

A) US $ 33 trillion a year

B) US $ 3 trillion a year

C) US $ 18 trillion a year

D) US $ 23 trillion a year

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14) In an embryo sac of anatropous ovule , cells present at chalazal end are called [NCERT PG NO 27]

A) Synergids

B) Antipodal cells

C) Nucellar cells

D) All of these

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15) In mammals, veins differs from arteries in having ?

A) Carry blood away from heart

B) Deeply present

C) Internal valves

D) Thicker walls

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16) Which plant do not show clear cut vegetative, reproductive and senescent phase [NCERT PG NO 9]

A) Perennial

B) Both A & B

C) Annual

D) Biennial

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17) The percentage of water and protein in a straw coloured viscous fluid is

A) 95 -97% and 3-5%

B) 70 % and 30 %

C) 90-95% and 10 %

D) 90-92% and 6-8 %

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18) Which of the following is best suited method for production of virus free plants?

A) meristem culture

B) ovule culture

C) anther culture

D) embryo culture

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19) കോക്ലിയക്ക് എത്ര അറകൾ ഉണ്ട്?

A) 4

B) 2

C) 1

D) 3

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20) Heart beat can be initiated by ?

A) Sino-auricular node

B) Sodium ion

C) Purkinje's fibers

D) Atrio-ventricular node

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21) In 60% Of the angiosperms shed their pollens at the [NCERT PG NO 23]

A) 1- celled stage

B) 4- Celled stage

C) 3- Celled stage

D) 2 -Celled stage

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22) The T-wave in an ECG represents ?

A) Return of the ventricles from excited state

B) Electrical excitation of atria

C) Depolarisation of ventricles

D) Beginning of systole

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23) Enzyme Carbonic anhydrase is present in _____ ?

A) Cell wall

B) Cell Membrane

C) Cytoplasm

D) Nucleus

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24) The lengthwise running groove on another which separate theca is called

A) Rupture line

B) All of these

C) Suture of anther

D) Line of dehiscence

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25) Venation is term used to describe the pattern of arrangement of

A) Veins and veinlets in a lamina

B) All of them

C) Floral organs

D) Flower in inflorescence

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26) Leucocytes are colorless due to ?

A) Lack of hemoglobin

B) Presence of white colour pigments

C) Presence of Ca+2 ions

D) Lack of water

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27) Embryo with more than 8 blastomeres formed due to in vitro fertilisation is transferred into [NCERT PG NO 64]

A) Vagina

B) Cervix

C) Uterus

D) Fallopian tube

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28) The relation between producers and consumers in an ecosystem can be graphically represented in the form of a pyramid called

A) Pi chart

B) Tropic level

C) Ecological Pyramid

D) Pyramid of biomass

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29) Four chambered heart is not present in ?

A) Mammals

B) Amphibians

C) Birds

D) Crocodile

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30) In ecological succession, the communities in near equilibrium with the environment, are called ?

A) seral communities

B) pioneer communities

C) eco-friendly communities

D) climax communities

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31) Exchange of gases nutrient sector between the fluid and the cells take place through ?

A) WBC

B) Serum

C) Interstitial fluid

D) RBC

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32) Select incorrect statements w.r.t anther[NCERT PG NO 21]

A) Anther is bilobed & tetrathecous

B) Often a longitudinal groove runs widthwise separating the theca

C) Microsporangia develop to become pollen sacs

D) Anther is a four sided (tetragonal)

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33) Climate community is __?

A) Self perpetuating

B) All of the above

C) Stable

D) Final biotic community

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34) Which one of the following animals may occupy more than one trophic level in the same ecosystem at the same time ?

A) Mice

B) Frog

C) Goat

D) Sparrow

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35) Open circulatory system is present in ?

A) Annelids

B) Chordates

C) Humans

D) Arthropod and molluscs

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36) In an ecosystem, the rate of production of organic matter during photosynthesis is termed as __?

A) net primary productivity

B) secondary productivity

C) net productivity

D) gross primary productivity

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37) Which neural signal decreases the heart rate and thereby the cardiac output ?

A) Parasympathetic neural system

B) Both above

C) Sympathetic nervous system

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38) What will be the ploidy of nucellus , MMC, Functional megaspore & female gametophyte respectively [NCERT PG NO 26]

A) 2n , n , 2n , n

B) n , 2n , n , 2n

C) 2n, 2n , n , n

D) n , n , 2n , 2n

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39) Which of the following animal is bisexual ?

A) Honey bee

B) Monkey

C) Cockroach

D) Leech

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40) In plant succession when climax community is reached,the net productivity ?

A) Continues to increase

B) Becomes zero

C) Becomes stable

D) Becomes reduced

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41) What is the structure of the ecosystem is comprised of ?

A) Transfer of energy

B) Output of energy

C) All of the above

D) Input of energy

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42) ശരിയായത് ഏത് ?

മണ്ണും രാസവളങ്ങളും കീടനാശിനികളും പൂർണമായും ഒഴിവാക്കി മത്സ്യങ്ങളോടൊപ്പം പച്ചക്കറികളും പഴങ്ങളുംമെല്ലാം ജൈവരീതിയിൽ ഉൽപാദിപ്പിക്കപെടുന്ന സങ്കേതമാണ് അക്വാപോണിക്സ്.
മത്സ്യകൃഷിയും മണ്ണില്ലാ കൃഷിരീതിയായ ഹൈഡ്രോപോണിക്സും സംയോജിക്കപ്പെട്ട കൃഷിരീതിയാണിത്.
അക്വാ പോണിക്സ് രീതിയിൽ വളരുന്ന ചെടികൾക്ക് നനയോ വളപ്രയോഗമോ ആവശ്യമില്ല

A) 2,3

B) 1,2,3

C) 1,2

D) 1,3

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43) Which of the following is inorganic co factor ?

A) Both 2 and 3

B) Cadmium

C) Zinc

D) Heme

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44) The primary function of large intestine in man is ?

A) absorption of all digested components

B) storage of waste matter only

C) digestion of undigested matter

D) absorption of water

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45) Select the correct option of haploid cells from the following groups :

A) Primary spermatocyte, Secondary spermatocyte, Second polar body

B) Primary oocyte, Secondary oocyte, Spermatid

C) Spermatogonia, Primary spermatocyte, Spermatid

D) Secondary spermatocyte, First polar body, Ovum

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46) Apporoxima 97% O2 absorbed by blood is transported to the body tissue ?

A) By RBC

B) All of these

C) As Bicarbonate ions

D) Through Plasma

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47) What is true about ecosystem ___?

A) Producers are more than primary consumers

B) Primary consumers are at least dependent on producers

C) Secondary consumers are the largest and powerful

D) Primary consumer out - number producers

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48) Most abundant protein in plants is ..........

A) Chloroplast

B) Callagen

C) RuBisCO

D) Hemoglobin

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49) Release of sperm from seminiferous tubule is known as [NCERT PG NO 47]

A) Spermatogenesis

B) Stimulation

C) Spermiation

D) Spermiogenesis

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50) Batch cultures are type of suspension culture where ?

A) medium is continuously replaced

B) medium is loaded only at the beginning

C) cellular wastes are continuously removed and replaced

D) no depletion of medium occurs

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51) The culturing of cells in liquid agitated medium is called ?

A) suspension culture

B) Agar culture

C) liquid culture

D) micro propagation

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52) Roots developed from the parts of the plants other than radicle are called

A) Nodular roots

B) Fiberous roots

C) Adventitious roots

D) Tap roots

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53) Difference between ZIFT and IUT lies in the

A) Nature of sperms

B) Methodology

C) Nature of cells

D) Number of cells

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54) In ecological Pyramid ,the base always represents the ....... and the apex represents.....

A) Producers, primary consumers

B) Top level consumers,producers

C) Producers,top level consumers

D) Producers, secondary consumers

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55) Which of following structure of Starch can Hold I2 molecules and gives blue colour ?

A) Quaternary structure

B) Primary structure

C) Secondary structure

D) Tertiary structure

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56) Which of the following is not a producer ?

A) Volvox

B) Nostoc

C) Agaricus

D) Spirogyra

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57) In ecological Pyramid ,the base always represents the ....... and the apex represents..... ?

A) Top level consumers,producers

B) Producers, primary consumers

C) Producers, secondary consumers

D) Producers,top level consumers

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58) The ovarian stroma is divided into zones [NCERT PG NO 44]

A) Peripheral endothelia and inner epithelia

B) Peripheral epithelia and inner endothelia

C) Peripheral medulla and inner cortex

D) Peripheral cortex and inner medulla

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59) Chitin is a ..........

A) Homopolymer

B) Heteropolymer

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60) Binding of CO2 with Hb more in tissue when ?

A) pCO2 is low & pO2 is low

B) pCO2 is high & pO2 is low

C) pCO2 is high & pO2 is high

D) pCO2 is low & pO2 is high

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61) Maize grain is a fruit known as ?

A) Achene

B) Caryopsis

C) Legume

D) Cypsela

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62) Polar nuclei are situated in the central cell - [NCERT]

A) Below the antipodals

B) Below the egg apparatus

C) Above the egg apparatus

D) All of the above

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63) മോഹ്‌സ് സ്കെയിൽ പ്രകാരം വിരലിലെ നഖത്തിൻ്റെ കടുപ്പം എത്ര ?

A) 3.5

B) 3.7

C) 4.6

D) 2.5

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64) All are plant derived elicitors except?

A) pectic acid

B) pectin

C) cellulose

D) chitin

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65) Blood group which do not contain any antigen on its surface ?

A) A

B) O

C) AB

D) B

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66) The rate of biomass production is ___?

A) Photosynthesis

B) Respiration

C) Decomposition

D) Productivity

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67) Anther is generally

A) Trisporangiate

B) Tetrasporangiate

C) Monosporangiate

D) Bisporangiate

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68) Apex of heart is ?

A) Lower and tilted towards right

B) Upper and tilted toward left

C) Upper and tilted towards right

D) Lower and tilted towards left

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69) Climate community is

A) Self perpetuating

B) All of the above

C) Final biotic community

D) Stable

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70) Conversion of fibrinogen is catalyzed by ?

A) All of the above

B) Thromboplastin

C) Thrombin

D) Prothrombin

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71) Energy storage at the consumer level is called __?

A) Secondary productivity

B) Gross primary productivity

C) Net productivity

D) Net primary productivity

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72) Which of the following ecosystems is more productive in terms of net primary production ?

A) Estuaries

B) Oceans

C) Tropical rainforest

D) Deserts

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73)

In which kingdom would you classify the archaea
and nitrogen-fixing organisms, if the five kingdom
system of classification is used ?

(a) Plantae (b) Fungi
(c) Protista (d) Monera

A) D

B) A

C) B

D) C

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74) Adult hemoglobin consists of four subunit of these are identical to each other that are the 4 units ______?

A) 2 alpha type and 2 beta type

B) 1 beta ans 1 alpha type

C) 1 alpha type and 3 beta type

D) 3 alpha and 1 beta

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75) In monerans & protistan , the parents cell divides by [NCERT PAGE NO 5]

A) Meiosis

B) First mitosis then meiosis

C) Mitosis

D) First meiosis then mitosis

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76) In the heart of mammals, the bicuspid valve (mitral valve) is situated between ?

A) Right ventricle and pulmonary aorta

B) Left auricle and left ventricle

C) Right auricle and left auricle

D) Post caval and right caval

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77) Endosperm a product of double fertilisation in angiosperms is absent the seeds of

A) Coconut

B) Castor

C) Maize

D) Orchids

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78) The term ecosystem was coined by __?

A) EP odum

B) E Warming

C) AG Tansley

D) E Haeckel

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79) Inability to conceive or produce children even after_______ of unprotected sexual cohabitation is called infertility .[NCERT SUMMARY]

A) 3 year

B) 4 year

C) 2 year

D) 1 year

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80) Each Ovary is connected to the pelvic wall and the uterus by: [NCERT PG NO 44 ]

A) Adipose tissue

B) Areolar tissue

C) Ligaments

D) Peritoneum

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81) A natural method of contraception, periodic abstinence is [NCERT PG 59]

A) Abstaining from coitus from day 10 to 17 of the menstrual cycle.

B) Abstaining from coitus from day 1 to 5 of the menstrual cycle.

C) Abstaining from coitus from day 17 to 22 of the menstrual cycle.

D) Abstaining from coitus from day 5 to 10 of the menstrual cycle.

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82) To achieve three celled stage in angiosperm which cell of pollen grain divide to form two male gametes [NCERT PG NO 23]

A) Vegetative cell

B) Microspore mother cell

C) Generative cell

D) All of the above

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83) Which is not a Cu releasing IUDs [NCERT PG NO 60]

A) Multiload 375

B) Cu7

C) Progestasert

D) CuT

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84) An individual transitional communities in ecological succession are termed as ?

A) Single community

B) Climax community

C) Seral community

D) Pioneer community

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85) Erythroblastosis fortalis can happen if mother and father are respectively ?

A) Rh+ve and Rh -ve

B) Rh -ve and Rh +ve

C) Do not depends on Rh factor

D) Any of above conditions

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86)

(a) Pioneer community is the final biotic community that develops in an area
(b) Pioneer community is soon replaced by the next seral community during on going succession

A) (a) true,( b) false

B) (a)& (b) true

C) (a) & (b) false

D) (a) false,(b) true

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87) Which of the following contraceptive device is inserted by the doctor or trained nurse in the uterus through the vagina? [NCERT PG NO 60]

A) IUDs

B) Vaults

C) Cervical caps

D) Diaphragm

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88) The primary female sex organs are located

A) One on each side of lower abdomen

B) One on each side of upper abdomen

C) At a time only one side of upper abdomen

D) At a time only one side of lower abdomen

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89) Blood consists of ?

A) Plasma

B) All of Above

C) Fluid Matrix

D) Formed Elements

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90) Which is a major factor which could affect the binding of CO2 with Hb ?

A) Temperature

B) pCO2

C) H+ concentration

D) pO2

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91) During intake of food, what prevents the entry of food into the glottis ?

A) epiglottis

B) Glottis itself

C) air present in windpipe

D) annular rings of pharynx

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92) Which one of the following is not a functional unit of an ecosystem ?

A) Stratification

B) Energy flow

C) Decomposition

D) Productivity

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93) Maize grain is a fruit known as

A) Caryopsis

B) Legume

C) Achene

D) Cypsela

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94) The cofactor that associates with the apoenzyme only during course of Catalysis are called ______ ?

A) Prosthetic group

B) Metal ions

C) Coenzyme

D) Cofactor

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95) An ecosystem resists change because it is in a state of : ___?

A) Deficiency of light

B) Shortage of components

C) Imbalance

D) Homeostasis

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96)

Endospermic seeds are found in ?
1 -Barley
2- Castor
3- Pea
4- Both a & b

A) 1

B) 4

C) 3

D) 2

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97) Integuments encircle the nucellus except at the [NCERT PG NO 25]

A) Funicle

B) Chalaza

C) Micropyle

D) Hilum

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98)

In the five kingdom system of classification, which
single kingdom out of the following can include
blue-green algae, nitrogen fixing bacteria and
methanogenic archaebacteria?

(a) Plantae (b) Protista
(c) Monera (d) Fungi

A) D

B) C

C) A

D) B

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99) Pollen grains are well preserved as fossils because of presence of [NCERT PG NO 23]

A) Pollen potential

B) Sporopollenin

C) Pollen kit

D) Facinating array of patterns & design

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100) Which of the following is an example of man made ecosystem ?

A) Aquarium

B) Forest

C) Desert

D) An island

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101) The entire sequence of communities that successively changes in a given area are called

A) Xerarch

B) Pioneer

C) Sere

D) Climax

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102) It is the vital link that ensure continuity of species. [NCERT PG NO 15]

A) All of these

B) Gamete

C) Zygote

D) Embryo

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103) The blood returning to the heart from lungs via pulmonary vein has more ?

A) Oxygen per ml of blood

B) Nutrient per ml of blood

C) Hemoglobin per ml of blood

D) RBC per ml of blood

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104) How many sperms are formed from a secondary spermatocyte?

A) 8

B) 1

C) 4

D) 2

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105) Pyramid of numbers is : _____?

A) Either upright or inverted

B) Always upright

C) Always inverted

D) Neither upright nor inverted

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106) In majority of angiosperm [NEET 2016]

A) There are numerous antipodal cells

B) Small Central cell is present in the embryo sac

C) Egg has filiform apparatus

D) Reduction division occur in the megaspore mother cell

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107) During parturition, the fetal ejection reflex triggers the release of:

A) A decreasing amount of estrogen and an increasing amount of progesterone from the placenta

B) GnRH from the fetal hypothalamus

C) Oxytocin in from the maternal pituitary

D) An increasing amount of estrogen and a decreasing amount of progesterone from the placenta

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108) In the primary structure of the protein the left end is represented by ____?

A) Last amino acid

B) First amino acid

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109)

Five kingdom system of classification suggested by
R.H. Whittaker is not based on ?

A) mode of reproduction

B) presence or absence of a well defined nucleus

C) mode of nutrition

D) complexity of body organisation.

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110) Biosynthetic pathways is also called _____?

A) Catalytic pathways

B) Both anabolic and catabolic pathways

C) Anabolic pathways

D) Catabolic pathways

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111) All are bisexual/monoecious species except [NCERT PG NO 12 , FIG 1.6]

A) Chara

B) Sweet potato

C) Marchantia

D) Cucurbits

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112) Nearly 70% CO2 absorbed by blood will be transported to the lungs ?

A) By RBC

B) As Bicarbonate ions

C) By Plasma

D) As carbamino haemoglobin

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113) An individual transitional communities in ecological succession are termed as

A) Climax community

B) Single community

C) Seral community

D) Pioneer community

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114) Non protein constituent which bound to enzymes catalytically more active are called ?

A) Inhibitor

B) Cofactor

C) Competitive inhibitor

D) Co ions

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115) A food web __?

A) All of the The above

B) Provide a number of alternate food to consumers

C) Is more real than food chain

D) Consist of a number of food chains interlinked at various tropic levels

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116) Which one of the following groups includes sexually transmitted infections caused by virus only ?

A) Gonorrhoea, Scabies, Trichomoniasis

B) Genital warts, Hepatitis B, AIDS

C) Hepatitis, Chlamydiasis, Chancroid

D) Syphilis, AIDS, Genital herpes

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117) lymph is an important carrier for the transport of ?

A) Both 1 and 2

B) Hormones

C) Nutrients

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118) The relation between producers and consumers in an ecosystem can be graphically represented in the form of a pyramid called ____?

A) Ecological Pyramid

B) Pyramid of biomass

C) Pi chart

D) Tropic level

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119) Endosperm a product of double fertilisation in angiosperms is absent the seeds of____?

A) Coconut

B) Casto

C) Maize

D) Orchids

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120) When does plant take decisions to flower? [NCERT PG NO 20]

A) In embryonic development

B) All of these

C) Much before the actual flower is seen on a plant

D) During the appearance of flower buds

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121) When more than 1 pistil fused together , it is said to be [NCERT PG NO 24]

A) Multicarpellary

B) Apocarpous

C) Monocarpellary

D) Syncarpous

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122) Inulin is a Polymer of ?

A) Glucose

B) Cellulose

C) Fructose

D) Starch

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123) According to the type of attachment, teeth can be ?

A) acrodont, pleurodont, thecodont

B) pleurodont, diphyodont, thecodont

C) thecodont, diphyodont and polyphyodont

D) monophyodont, pleurodont and polyphyodont

124 / 332

124) Biologists describes the protein structure at ________?

A) 3 levels

B) 4 levels

C) 2 levels

D) 6 levels

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125) How many maximum molecules of O2 will be carry by 4 haemoglobin molecule ?

A) 9

B) 6

C) 16

D) 1

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126) Wider part of the oviduct is [NCERT PG NO 46]

A) Ampulla

B) Infundibulum

C) Fimbriae

D) Isthmus

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127) The entire sequence of communities that successively changes in a given area are called ?

A) Climax

B) Sere

C) Pioneer

D) Xerarch

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128) In a biotic community, the primary consumers in the ecosystem are __?

A) Carnivores

B) Herbivores

C) Omnivores

D) Detritivores

129 / 332

129) In a pond ecosystem, the autotrophic components are

A) All of the above

B) Algae

C) Phytoplankton

D) Submerged and marginal plants

130 / 332

130) All three wall layers perform the function of protection & help in dehiscence of anther to release pollen except [NCERT PG NO 21]

A) Tapetum

B) Epidermis

C) Endothecium

D) Middle layers

131 / 332

131) Which of the following is not a producer

A) Nostoc

B) Agaricus

C) Spirogyra

D) Volvox

132 / 332

132) Energy for the detritus food chain comes from ?

A) Water

B) Radiation

C) Organic remain

D) Air

133 / 332

133) The two components of an ecosystem are ?

A) Weeds, trees, animals and man

B) Biotic and abiotic

C) Energy flow and mineral cycling

D) Plants and animals

134 / 332

134) The ovaries are located [ NCERT PG NO 44]

A) Two on each side of the upper abdomen

B) One on each side of the lower abdomen

C) Two on each side of the lower abdomen

D) One on each side of the upper abdomen

135 / 332

135) ഏതു മണ്ഡലത്തിൽ നിന്നാണ് ജോസഫ് മുണ്ടശ്ശേരി 1957ൽ കേരള നിയമസഭയിലേക്ക് തിരഞ്ഞെടുക്കപ്പെട്ടത്?
പരവൂർ മണലൂർ കോട്ടയം തൊടുപുഴ

A) തൊടുപുഴ

B) കോട്ടയം

C) മണലൂർ

D) പരവൂർ

136 / 332

136) The bond between phosphate and hydroxyl group of sugar is called______?

A) Ester bond

B) Hydrogen bond

C) Peptide bond

D) Glycosidic bond

137 / 332

137) All are plant derived alkaloids except ?

A) codeine

B) menthol

C) nicotine

D) quinine

138 / 332

138) Syngenesious condition of stamen is found in family ?

A) Cruciferae

B) Malvaceae

C) Liliaceae

D) Asteraceae

139 / 332

139) Which of the following statement is incorrect ?

A) Embryogenesis involves cell division and cell differentiation

B) Animals are either unisexual or bisexual

C) Asexual reproduction is a rapid mode of reproduction

D) The life spans of organisms are correlated with their sizes

140 / 332

140) Biotic components refer to___?

A) Nutrient deficient soil

B) Fossil fuels

C) Gases produced by industries

D) Living organisms

141 / 332

141) Which of the following is an example of man made ecosystem

A) An island

B) Aquarium

C) Forest

D) Desert

142 / 332

142) Out of the total propsed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are ?

A) 50%

B) 6%

C) 10%

D) 20%

143 / 332

143) Example of wind pollination is [NCERT PG NO 29]

A) Corn cob

B) Hydrilla

C) Vallisneria

D) Zostera

144 / 332

144) It is an essential event in sexual reproduction .[NCERT PG NO 17, SUMMARY]

A) Gametogenesis

B) Zygote formation

C) Fertilisation

D) Transfer of male gamete

145 / 332

145) Which of the following ecosystems is more productive in terms of net primary production

A) Deserts

B) Oceans

C) Estuaries

D) Tropical rainforest

146 / 332

146) Primarily Involve in the defense mechanism of the body ?

A) Albumins

B) Globulins

147 / 332

147) Out of the total propsed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are

A) 10%

B) 20%

C) 6%

D) 50%

148 / 332

148) When the heart stop beating condition is called ?

A) Congestive heart Failure

B) Cardiac arrest

C) Heart failure

D) Heart attack

149 / 332

149)

Flowers require synchrony in pollen release and stigma receptivity in [NCERT PG NO 27]

A) Apogamy

B) Geitonogamy

C) Autogamy

D) Xenogamy

150 / 332

150) Select what is not true of intestinal villi among the following ?

A) they possess microvilli

B) they are supported with capillaries and lacteal vessels

C) they increase the surface area

D) they only participate in digestion of fats.

151 / 332

151) Which of the following structure is absolute necessary for many biological activities of the protein ?

A) All are absolute Necessary

B) Secondary

C) Primary

D) Tertiary

152 / 332

152) Type of protein found in plasma is?

A) Fibrinogen

B) Albumin

C) Globulin

D) All of these

153 / 332

153) The testes are situated ____ the abdominal cavity within a pouch called ____. [NCERT PG NO 43]

A) outside, vas deferens

B) outside, scrotum

C) inside, scrotum

D) inside, testicular lobules

154 / 332

154) Which of the following is the most stable ecosystem ?

A) Ocean

B) Forest

C) Desert

D) Mountain

155 / 332

155) Employment of hereditary principles in the improvement of human race is ?

A) Ethnology

B) Euthenics

C) Eugenics

D) Euphenics

156 / 332

156) ജന്തു വൈവിധ്യം ഏറ്റവും കൂടുതൽ കാണപ്പെടുന്ന വനങ്ങളുടെ പ്രത്യേകത ഏത് ?

A) മൺസൂൺ കലാവസ്ഥ

B) മഴ തീരെ കുറവ്

C) കാലികമായ മഴ

D) വാർഷിക വർഷപാതം കൂടുതൽ

157 / 332

157) if husband is Rh+ when wife is Rh- negative then................?

1) No problem with first child
2) Second child would have anaemia ( erythroblastosis foetalis )
3) Second child would be normal
4) Both 1 and 2

A) 1 & 2

B) 3 & 2

C) 2 Only

D) 1 Only

158 / 332

158) The rate of biomass production is

A) Productivity

B) Decomposition

C) Respiration

D) Photosynthesis

159 / 332

159) In the tropical rain forest, most of the energy in the ecosystem flows through : ___?

A) Parasitic food chain

B) Both grazing food chain and parasitic food chain

C) Detritus food chain

D) Grazing food chain

160 / 332

160) Which light range is least effective in photosynthesis ?

A) Blue

B) Red

C) Violet

D) Green

161 / 332

161) In adult, each testis bears ____ compartments called testicular lobules. [NCERT PG NO 43]

A) 250

B) 500

C) 350

D) 150

162 / 332

162) The external opening of urethra is called [NCERT PG NO 43]

A) Urinary bladder

B) Urethral meatus

C) Urethral ductis

D) Urinary tract

163 / 332

163) Which cell secrete testicular hormones [NCERT PG NO 43]

A) Leydig cells

B) Germ cells

C) Sertoli cells

D) Spermatogonia

164 / 332

164) which of the following birth control measures can be considered as the most effective and reliable ?

A) The rhythm method

B) Sterilisation technique

C) Intra uterine devices

D) Use of physical barriers

165 / 332

165) What is the amount of average price tag on nature's life support services determined by Robert Constanza and his colleagues

A) US $ 18 trillion a year

B) US $ 33 trillion a year

C) US $ 3 trillion a year

D) US $ 23 trillion a year

166 / 332

166) The number of Chambers in the heart of fishes amphibian and birds ?

A) 2,3,4

B) 2,4,4

C) 2,2,4

D) 3,3,4

167 / 332

167) Primary productivity depends upon____?

A] Availability of nutrients
B] Photosynthetic capacity of plants
C] Both a& b
D] None of these

A) A & B

B) B & C

C) C & A

D) A Only

168 / 332

168) Protein is a ..............

A) Heteropolymer

B) Homoploymer

169 / 332

169) Haemoglobin is a ___________ coloured ________ containing pigment ?

A) Pink , Fe

B) Red , Fe

C) Red , Cu

D) Orange , Cu

170 / 332

170) Which of the following event is post fertilisation event ?

A) Gametogenesis

B) Fertilisation

C) Gamete transfer

D) Embryogenesis

171 / 332

171) Which of the following sexually transmitted diseases is not completely curable ? [NEET 2019]

A) Chlamydiasis

B) Gonorrhoea

C) Genital warts

D) Genital herpes

172 / 332

172) Nature of waves in the heart is (CPMT) ?

A) Muscular

B) Ligamentous

C) Membranous

D) Tendinous

173 / 332

173) Edible part of apple and pear is___?

A) Mesocarp

B) Endocarp

C) Epicarp

D) Thalamus

174 / 332

174) Lecithin is a ..............

A) Glycolipid

B) Steroid

C) Carbohydrate

D) Phospholipid

175 / 332

175) The most common solidifying agent used in micropropagation is ............?

A) all of these

B) Mannan

C) agar

D) dextran

176 / 332

176) What is true about ecosystem

A) Producers are more than primary consumers

B) Primary consumers are at least dependent on producers

C) Secondary consumers are the largest and powerful

D) Primary consumer out - number producers

177 / 332

177) Enzymes can have ?

A) Primary structure

B) All of the these

C) Secondary structure

D) Tertiary structure

178 / 332

178) find the correct descending order of percentage proportion of leukocyte in the human blood?

A) Monocytes >> Neutrophils >> lymphocytes >> Acidophils >> basophils

B) Neutrophils >> lymphocytes >> Monocytes >> Acidophils >> basophils

C) Neutrophils >> basophils >> lymphocytes >>Eosinophils monocyte

D) Lymphocytes >> Acidophils >> basophils >> Neutrophils >>Monocytes

179 / 332

179) Which is largest among the given lymphocytes?

A) Eosinophils

B) Basophils

C) Monocytes

D) Lymphocytes

180 / 332

180) Amniocentesis is used to test for the presence of certain genetic disorders except [NCERT PG NO 58]

A) Cleft palate

B) Haemophilia

C) Down syndrome

D) Sickle cell anaemia

181 / 332

181) The seminiferous tubules of the testis open into the vasa efferentia through [NCERT PG NO 43]

A) Vasa deferentia

B) Seminiferous tubules

C) Rete testis

D) Epididymis

182 / 332

182) Who play an important role in guiding the pollen tubes to enter the embryo sac [NCERT PG NO 27]

A) Mircropylar end

B) Synergids

C) Egg cell

D) Filiform apparatus

183 / 332

183) Biotic components refer to

A) Living organisms

B) Fossil fuels

C) Nutrient deficient soil

D) Gases produced by industries

184 / 332

184) In a biotic community, the primary consumers in the ecosystem are

A) Omnivores

B) Detritivores

C) Carnivores

D) Herbivores

185 / 332

185) In angiosperm , Over _______ pollen grains shed at 2 celled stage & _______ pollen grains shed at 3 celled stage . [NCERT PG NO 23,]

A) 60%, 40%

B) 70% , 30%

C) 40%, 60%

D) 30%, 70%

186 / 332

186) The primary oocyte completes the first meiotic division [NCERT PG NO 49]

A) In the fetal life

B) After fertilisation

C) Prior to ovulation

D) After ovulation

187 / 332

187) Liver is the largest gland and is associated with various functions, choose one which is not correct. ?

A) Secretion of hormone called gastrin

B) Formation of bile

C) Digestion of fat

D) Metabolism of carbohydrate

188 / 332

188) Opening of the right ventricle into Pulmonary artery and that of left ventricle into the aorta is provided with ?

A) Mitral valve

B) Semilunar valve

C) Tricuspid valve

D) Bicuspid valve

189 / 332

189) A detritivore is___?

A) Animal feeding on plant matter

B) Animal feeding on another animal

C) Animal feeding on dead and decaying organic matter

D) A plant feeding on an animal

190 / 332

190) In the food chain, which is most abundant in tropical rain forest and is a major conduit for energy flow ?

A) Is never connected to GFC.

B) Is also called auxiliary food chain.

C) Composed of small chain of detritivores only.

D) Source of energy is detritus.

191 / 332

191) The placenta is attached to the developing seed near the?

A) Hilum

B) Chalaza

C) Micropyle

D) Testa

192 / 332

192) Heart is derived from ?

A) Endoderm

B) All of these

C) Mesoderm

D) Ectoderm

193 / 332

193) The diaphragm is a rubber dome shaped structure and stops the sperms from entering into [NCERT PG NO 60]

A) Vagina

B) Both A&B

C) Cervix

D) Vestibule

194 / 332

194)

BGA (blue green algae) are included in which of the
following groups?

(a) Bryophytes (b) Prokaryotes
(c) Protista (d) Fungi

A) D

B) A

C) B

D) C

195 / 332

195) The nature of climax community ultimately depends on ?

A) Soil organisms

B) Bed rock

C) Climate

D) Pool of available nutrients

196 / 332

196) Stratification is more pronounced in ____?

A) tropical savannah

B) tropical rainforest

C) deciduous forest

D) temperate forest

197 / 332

197) Ovarian stroma is enclosed by a thin ____. [NCERT PG NO 44]

A) Mesothelium

B) Epithelium

C) Endothelium

D) Ciliated epithelial

198 / 332

198) econdary productivity is rate of formation of new organic matter by ___?

A) parasite

B) consumer

C) decomposer

D) producer

199 / 332

199) Many pulses of daily use belong to one of the families below___?

A) Fabaceae

B) Solanaceae

C) Poceae

D) Liliaceae

200 / 332

200) Platelets are ?

A) Produced from megakaryocytes

B) All of these

C) Also called thrombocytes

D) Cell fragments

201 / 332

201) Artificial seeds are.........

A) seeds produced in laboratory condition

B) zygotic embryos encapsulated in a gel

C) seeds encapsulated in a a gel

D) somatic embryos encapsulated in a gel

202 / 332

202) What are the various aspects of reproduction covered by WHO? [NCERT PG NO 57]

A) Physical, Emotional, Social

B) Physical, Emotional, Gestational, Social

C) Physical, Emotional, Behavioural

D) Physical, Emotional, Behavioural, Social

203 / 332

The modification of exogenous compounds by plant cells is called
a) Biotransformation

203) b) bioconversion

c) both a and b

d) biophytomodification

A) B

B) D

C) A

D) C

204 / 332

204) Maximum nutritional diversity is found in the group ?

(a) fungi (b) animalia
(c) monera (d) plantae

A) A

B) B

C) D

D) C

205 / 332

205) Which of the following plant is used to extract the blue dye ?

A) Cassia

B) Trifolium

C) Indigofera

D) Lupin

206 / 332

206) The outermost and innermost wall layers of microsporangium in an anther are respectively [NCERT PG NO 21]

A) Tapetum , epidermis

B) Epidermis, endothecium

C) Epidermis , tapetum

D) Endothecium , epidermis

207 / 332

207) Inside the mature seed, it is the progenitor of the next generation .[NCERT PG NO 17]

A) Embryo

B) Zygote

C) Gamete

D) Both B & C

208 / 332

208) Every 500 ml of oxygenated blood can deliver around _________ of O2 to the tissue ?

A) 50 ml

B) 100 ml

C) 15 ml

D) 25 ml

209 / 332

209)

In the five kingdom classification, Chlamydomonas and
Chlorella have been included in?

(a) protista (b) algae
(c) plantae (d) monera

A) B

B) A

C) D

D) C

210 / 332

210) Estrous cycle is found in

A) Gorilla

B) Gibbon

C) Cow

D) Monkey

211 / 332

211) An important criterion for modern day classification is ?

(a) resemblances in morphology
(b) anatomical and physiological traits
(c) breeding habits
(d) presence or absence of notochord

A) V

B) B

C) A

D) C

212 / 332

212) എവിടെയാണ് പി കൃഷ്ണപിള്ള ജനിച്ചത്?

A) കൊല്ലം

B) വൈക്കം

C) മുഹമ്മ

D) പുന്നപ്ര

213 / 332

213) നാലാമത്തെ ക്രോമസോമിലെ ഒരു ജീ നിൻറെ തകരാറു മൂലം ഉണ്ടാകുന്ന രോഗം?

A) സിക്കിൾസെൽ അനീമിയ

B) ഡൗൺ സിൻഡ്രോം

C) ക്വാഷിയോർക്കർ

D) ഹണ്ടിംഗ്ടൺ രോഗം

214 / 332

214) The other term for heart attack is ?

A) Cardiac arrest

B) Ischemia

C) Coronary thrombosis

D) Myocardial infarction

215 / 332

215) Enzymes exhibit which structure of proteins for biological activities... ?

A) Primary

B) Tertiary

C) Quaternary

D) Secondary

216 / 332

216) The mucosal layer in the stomach forms irregular folds known as ?

A) villi

B) crypts of Lieberkuhn

C) lumen

D) rugae

217 / 332

217) Correct statement about Leydig cells [NCERT PG NO 43]

A) Are present in seminiferous tubules and secrete androgens

B) Are present in interstitial space and secrete androgens

C) Are present in seminiferous tubules and help in maturation of sperms

D) Are present in interstitial space and help in maturation of sperms

218 / 332

218) Strobilanthus kunthiana is found in [NCERT PG NO 9]

A) Eastern india

B) Northern India

C) Southern India

D) Western india

219 / 332

219) Which one of the following is not the function of placenta?

A) Secretes oxytocin during parturition

B) Facilitates removal of carbon dioxide and waste material from embryo

C) Secretes oestrogen

D) Facilitates supply of oxygen and nutrients to embryo

220 / 332

220) Atretic follicles are found in the

A) Fallopian tubes

B) Uterus

C) Ovary

D) Labia majora

221 / 332

221) Pollen grains are mature when [NCERT PG NO 23]

A) Both A & C

B) It contains vegetative cell & genetative cell

C) It contains two diploid cells

D) It contains one haploid cells

222 / 332

222) The placenta is attached to the developing seed near the

A) Chalaza

B) Micropyle

C) Testa

D) Hilum

223 / 332

223) Oxygenated blood is carried by

(OR)

Blood vessels carrying blood from lungs to heart

A) Pulmonary vein

B) Renal vein

C) Hepatic portal vein

D) Pulmonary artery

224 / 332

224) How many microsporangia are located in the corners of a typical bilobed anther of angiosperm ? [NCERT], [KCET 2021]

A) 8

B) 4

C) 2

D) 1

225 / 332

225) In which of the following, both autogamy and geitonogamy are prevented

A) Wheat

B) Castor

C) Maize

D) Papaya

226 / 332

226) Building block of nucleic acid is ...........

A) Nucleotide

B) Nucleoside

227 / 332

227) Many pulses of daily use belong to one of the families below

A) Liliaceae

B) Solanaceae

C) Poceae

D) Fabaceae

228 / 332

228) The population of India at the time of independence was about

A) 550 million

B) 350 million

C) 250 million

D) 450 million

229 / 332

229) Sepals also remain attached in plant after fertilisation only in [NCERT PG NO 16]

A) Solanaceae

B) Leguminaceae

C) Fabaceae

D) Liliaceae

230 / 332

230) Which constitute the female accessory ducts [NCERT PG NO 45]

A) Oviduct + uterus + cervix

B) Oviduct + uterus + vagina

C) Fallopian tube + uterus + vagina

D) Fallopian tube + uterus + cervix + vagina

231 / 332

231) Blood group do not contain any antibody in its plasma ?

A) B

B) O

C) A

D) AB

232 / 332

232) മദ്യം മസ്തിഷ്കത്തിലെ ഏത് നാഡീയ പ്രേക്ഷകത്തിന്റെ ഉൽപാദനത്തെയാണ് ത്വരിതപ്പെടുത്തുന്നത്

A) GABA

B) GABN

C) GBNA

D) GABN

233 / 332

233) Centre of each microsporangium is occupied by [NCERT PG NO 21]

A) Sporogenous tissue

B) Microspore mother cell

C) Central tissue

D) Tapetum

234 / 332

234) detritus food chain starts from

A) Green plants

B) Zooplanktons

C) Dead organic matter

D) None of the above

235 / 332

235) Which one of the following is not a functional unit of an ecosystem

A) Stratification

B) Energy flow

C) Decomposition

D) Productivity

236 / 332

236) The volume of blood that enters into the aorta with each ventricular systole is called ?

A) Cardiac output

B) Cardiac cycle

C) Vital capacity

D) Stroke volume

237 / 332

237) Immobilized cell bioreactors are based on........

A) all of these

B) cells entrapped in gels

C) cells cultures in solid medium

D) cells cultured in liquid medium

238 / 332

238) Cybrids are

A) nuclear hybrids

B) cytoplasmic hybrids

C) cytological hybrids

D) hybrid plants derived from cross pollination

239 / 332

239) Which is the hormonal method of birth control

A) Pill

B) Vasectomy

C) IUD

D) Femidon

240 / 332

240) Energy storage at the consumer level is called

A) Net primary productivity

B) Gross primary productivity

C) Net productivity

D) Secondary productivity

241 / 332

241) The nature of climax community ultimately depends on

A) Pool of available nutrients

B) Soil organisms

C) Climate

D) Bed rock

242 / 332

242) Energy for the detritus food chain comes from

A) Water

B) Air

C) Organic remain

D) Radiation

243 / 332

243) Chordae tendineae are found in ?

A) Joints

B) Ventricles of heart

C) Ventricles of brain

D) Atria of heart

244 / 332

244) Seminiferous tubules contain __________ for providing nutrition to sperm cells. [NCERT PG NO 43]

A) Interstitial cells

B) Sertoli cells

C) Germ cells

D) Leydig cells

245 / 332

245) Most commonly used body fluid ?

A) Plasma

B) Limph

C) Blood

D) Serum

246 / 332

246) In which of the following pollen grains have long ribbon like structure [NCERT PG NO 29]

A) Vallisneria

B) Zostera

C) Water lily

D) Hydrilla

247 / 332

247) Trophic levels are formed by :___?

A) Animals

B) Carnivores

C) Plants

D) Organisms linked in food chain

248 / 332

248) Confirmatory test for STDs is [NCERT]

A) PCR

B) ELISA

C) All of these

D) DNA hybridisation

249 / 332

249) Zoospores are [ NCERT PG NO 7]

A) Macroscopic motile structure

B) Microscopic non motile structure

C) Macroscopic non motile structure

D) Microscopic motile structure

250 / 332

250) Elicitors are molecules that ...........?

A) induce cell divison

B) stimulate production secondary metabolites

C) none of these

D) stimulate hairy root formation that accumulate secondary metabolites

251 / 332

251) Humans are ____ and ____ organisms. [ NCERT PG NO 42]

A) Asexually reproducing, oviparous

B) Asexually reproducing, viviparous

C) Sexually reproducing, oviparous

D) Sexually reproducing, viviparous

252 / 332

252) Proximal end of the filament is attached to the [NCERT PG NO 21]

A) Thalamus or petal

B) Placenta

C) Anther

D) Connective

253 / 332

253) In plant succession when climax community is reached,the net productivity

A) Becomes zero

B) Becomes stable

C) Becomes reduced

D) Continues to increase

254 / 332

Decomposers like fungi and bacteria are :
i. Autotrophs ii. Heterotrophs

254) iii. Saprotrophs iv. Chemoautotrophs Choose the correct answer : ___?

A) i and ii

B) i and iii

C) i and iv

D) ii and iii

255 / 332

255) An example of protein with quaternary structure is ____ ?

A) Myoglobin

B) Keratin

C) All of above

D) Hemoglobin

256 / 332

256) Who occupies the centre of each microsporangia when the anther is young [NCERT PG NO 21]

A) Connective tissue

B) Sporogenous tissue

C) Tapetum

D) Middle layers

257 / 332

257) Which of the following is non-medicated IUDs [NCERT PG NO 60]

A) Multiload 375

B) Lippes loop

C) Progestasert

D) LNG 20

258 / 332

258) Patterns and designs of exine of pollen grains are Characteristic feature of [NCERT PG NO 23]

A) Genus of plants

B) None of these

C) Species of plant

D) Order of plants

259 / 332

259) Roots developed from the parts of the plants other than radicle are called___?

A) Nodular roots

B) Fiberous roots

C) Tap roots

D) Adventitious roots

260 / 332

260)

Which of the following are found in extreme saline
conditions?

(a) Eubacteria (b) Cyanobacteria
(c) Mycobacteria (d) Archaebacteria

A) A

B) B

C) D

D) C

261 / 332

261) ________________ Makes the uterus unsuitable for implantation and the cervix hostile to ____________

A) Sperms and ova

B) Hormone releasing IUD, Spermatogonia

C) Hormone releasing IUD , sperms

D) Hormone releasing IUD and ova

262 / 332

262) What is total diastolic time of ventricle in cardiac cycle ?

A) 0.40 second

B) 0.10 second

C) 0.50 second

D) 0.30 second

263 / 332

263) Which one of the following statements is correct with respect to immunity ?

A) Antibodies are protein molecules, each of which has four light chains

B) The antibodies against small pox pathogen are produced by T-lymphocytes

C) Preformed antibodies need to the injected to treat the bite by a viper snake

D) Rejection of a kidney graft is the function of B-lymphocytes

264 / 332

264) Vertical distribution of different species occupying different levels in a biotic community is known as ?

A) Pyramid

B) Divergence

C) Stratification

D) Zonation

265 / 332

265) (a) Pioneer community is the final biotic community that develops in an area

(b) Pioneer community is soon replaced by the next seral community during on going succession

A) (a) false,(b) true

B) (a) true,( b) false

C) (a)& (b) true

D) (a) & (b) false

266 / 332

266) Total number of incisors, canines, premolars and molars in an adult man is ?

A) 12,4,8,8

B) 8,6,12,6

C) 6,4,10,12

D) 8,4,8,12

267 / 332

267) What do you mean by dental formula?

A) An arrangement of teeth in each half of the upper and lower jaw in the order of I, C, PM, M

B) An arrangement of teeth in the lower jaw in the order of I, C, PM, M

C) An arrangement of teeth in upper jaw in the order of I, C, PM, M

D) An arrangement of teeth in mouth in the order of I, C, PM, M

268 / 332

268) Biomolecules are present in certain concentrations expressed as______?

A) All of these

B) Moles/cell

C) Mols/litre

D) mmol/Litre

269 / 332

269) In India, marriageable age for boys is ____ and girls is ____ respectively. [NCERT]

A) 15, 18 years

B) 15, 14 years

C) 18, 21 years

D) 21, 18 years

270 / 332

270) detritus food chain starts from ?

A) Dead organic matter

B) Green plants

C) Zooplanktons

D) None of the above

271 / 332

271) Primary production is ______?

A) None is correct

B) Both 1 and 2

C) the amount of biomass produced per unit area over a time period by plants during photosynthesis

D) expressed in terms of weight (gm−2 ) or energy (kcal m−2 )

272 / 332

272) During systole of heart ?

A) Atria and ventricles contract separately

B) Only atria contracts

C) Only ventricles contract

D) Atria and ventricles contract simultaneously

273 / 332

273) External fertilisation occurs in

A) Mammals

B) Birds

C) Reptiles

D) Bony fishes

274 / 332

274)

Match the organisms in column-I with habitats in
column-II.

Column-I Column-II
A. Halophiles (i) Hot springs
B. Thermoacidophiles (ii) Aquatic environment
C. Methanogens (iii) Guts of ruminants
D. Cyanobacteria (iv) Salty area
Select the correct answer from the options given
below.

A) A-(ii), B-(iv), C-(iii), D-(i)

B) A-(i), B-(ii), C-(iii), D-(iv)

C) A-(iii), B-(iv), C-(ii), D-(i)

D) A-(iv), B-(i), C-(iii), D-(ii)

275 / 332

275) The offspring produced through which of the following process are not exactly similar to their parents ?

A) Ameiotic thelytoky

B) Parthenogenesis

C) Asexual reproduction

D) Sexual reproduction

276 / 332

276) Encysted amoeba divides by [NCERT PG NO 6]

A) Budding

B) Both A & C

C) Multiple fission

D) Binary fission

277 / 332

277) Edible part of apple and pear is

A) Thalamus

B) Endocarp

C) Epicarp

D) Mesocarp

278 / 332

278) Abiotic components refer to ______?

A) non-living physico-chemical factors

B) living physico-chemical factors

C) Living organism

D) gases produced by industries

279 / 332

279) Primary productivity depends upon

A) Both a& b

B) Photosynthetic capacity of plants

C) Availability of nutrients

D) None of these

280 / 332

280) The basic categories of ecosystem are ___?

A) terrestrial

B) aquatic

C) Both (a) and (b)

281 / 332

281) Venation is term used to describe the pattern of arrangement of ?

A) Veins and veinlets in a lamina

B) Flower in inflorescence

C) All of them

D) Formal organs

282 / 332

282) In ICSI , sperm is directly injected the__________ [NCERT PG NO 64]

A) Uterus

B) Ovum

C) Fallopian tube

D) Vagina

283 / 332

283) No new follicles develop in the luteal phase of the menstrual cycle because [NEET 2019]

A) Both FSH and LH levels are low in the luteal phase

B) FSH levels are high in the luteal phase

C) Follicles do not remain in the ovary after

D) LH levels are high in the luteal phase

284 / 332

284) Select incorrect statements regarding water hyacinth. [ NCERT PG NO 8]

A) Most invasive weeds

B) Drains oxygen from water

C) Grow in running water

D) Known as terror of bengal

285 / 332

285) Which of the following plant is used to extract the blue dye

A) Cassia

B) Lupin

C) Trifolium

D) Indigofera

286 / 332

286) An inverted pyramid of biomass can be found in which ecosystem

A) Grassland

B) Marine

C) Tundra

D) Forest

287 / 332

287)

In five kingdom system, the main basis of
classification is ?

(a) structure of nucleus (b) mode of nutrition
(c) structure of cell wall (d) asexual reproduction.

A) B

B) A

C) C

D) D

288 / 332

288) Human heart is ?

A) Myogenic

B) Cardiogenic

C) Neurogenic

D) Digenic

289 / 332

289) In humans, the sex of the baby is determined:

A) At the time of implantation and by the father

B) At the time of fertilization and by the mother

C) At the time of implantation and by the mother

D) At the time of fertilization and by the father

290 / 332

290) Nearly ______________ MTPs are performed in a year all of the world which accounts to _________ of the total number of conceived pregnancies in a year [NCERT PG NO 62]

A) 45 to 50 million , 1/5th

B) 40 to 55 lacs , 1/5th

C) 40 to 55 million , 1/10th

D) 45 to 50 lacs , 1/10th

291 / 332

291) Region outside the seminiferous tubule is called

A) Interdigital space

B) Interstitial space

C) Blind space

D) Interferous space

292 / 332

292) Within the heart AV node is found at ?

A) upper right corner of right Atrium

B) Lower left corner of left Atrium

C) Lower left corner of right Atrium

D) Upper right corner of left Atrium

293 / 332

293) Clot formed by a network of the thread head injury site is composed of ?

A) Dead and damaged formed element

B) Fibrin protein

C) All Of the Above

294 / 332

294) The largest part of the fallopian tube is [NCERT PG NO 44]

A) Ampulla

B) Cervical canal

C) Infundibulum

D) Isthmus

295 / 332

295) Syngenesious condition of stamen is found in family?

A) Asteraceae

B) Cruciferae

C) Liliaceae

D) Malvaceae

296 / 332

296) Hepato-pancreatic duct opens into the duodenum and carries ?

A) saliva

B) both bile and pancreatic juice

C) pancreatic juice

D) bile

297 / 332

297) പാലിയം സത്യാഗ്രഹം ആരംഭിച്ച വർഷം?

A) 1947

B) 1945

C) 1944

D) 1946

298 / 332

298) The two components of an ecosystem are

A) Plants and animals

B) Biotic and abiotic

C) Energy flow and mineral cycling

D) Weeds, trees, animals and man

299 / 332

299) Which of the following depicts the correct pathway of transport of sperms [NEET 2016]

A) Rete testis➡️Epididymis➡️Efferent ductules➡️vas deferens

B) Rete testis➡️vas deferens➡️ Efferent ductules➡️Epididymis

C) Efferent ductules➡️Rete testis➡️vas deferens➡️Epididymis

D) Rete testis➡️Efferent ductules ➡️Epididymis➡️vas deferens

300 / 332

300) Tricuspid and bicuspid or mitral valve is present in between respectively ?

A) Right ventricle and left Atrium & right ventricle and right Atrium

B) Right Atrium and right ventricle , &left Atrium and left ventricle

C) Left Atrium left ventricle ,&right Atrium right ventricle

D) Left ventricle and right Atrium, &right ventricle and left Atrium

301 / 332

301) Enzyme , Carbonic anhydrase is present in ____ ?

A) Plasma

B) RBC

C) Bicarbonate

D) RBC & Plasma

302 / 332

302) Phase of menstrual cycle in human that lasts for 7-8 days is

A) Follicular phase

B) Luteal phase

C) Ovulatory phase

D) Menstruation

303 / 332

303) Each cell of sporogenous tissue is a [NCERT PG NO 22]

A) Potential pollen

B) MMC

C) PMC

D) All of these

304 / 332

304) Which Chambers of the heart that has thickest muscular wall ?

A) Right ventricle

B) Left Atrium

C) Left ventricle

D) Right Atrium

305 / 332

305) Contraction of right ventricle pumps blood into ?

A) Coronary artery

B) Dorsal aorta

C) Pulmonary artery

D) Pulmonary vein

306 / 332

306) Pyramid of numbers in a pond ecosystem is : ___?

A) Inverted

B) Irregular

C) Spindle shaped

D) Upright

307 / 332

307) ബാസൽ മിഷൻകാർ ഓട് ഫാക്ടറി സ്ഥാപിച്ചത് എവിടെ?

A) ജപ്പ്

B) ആറ്റിങ്ങൽ

C) തലശ്ശേരി

D) പുതിയറ

308 / 332

308) Pollination by water is limited to about [NCERT PG NO 29]

A) 20 genera , mostly dicot

B) 30 genera , mostly dicot

C) 30 genera , mostly monocot

D) 20 genera, mostly monocot

309 / 332

309) ഓരോ പള്ളിക്കും ഒപ്പം ഒരു പള്ളിക്കൂടം എന്ന ആശയം മുന്നോട്ട് വെച്ചത്?

A) പൊയ്കയിൽ യോഹന്നാൻ

B) പാലക്കുന്നത്ത് എബ്രഹാം malpan

C) കുര്യാക്കോസ് ചാവറ

D) പാമ്പാടി ജോൺ ജോസഫ്

310 / 332

310) ആത്മകഥക്ക് ഒരു ആമുഖം ഇതു ആരുടെ ആത്മകഥയാണ്?

A) ലളിതoബിക അന്തർജനം

B) സുഗതകുമാരി

C) പ്രൊഫ ലീലാവതി

D) അരുന്ധതി റോയ്

311 / 332

311) A food web

A) Provide a number of alternate food to consumers

B) All of the above

C) Consist of a number of food chains interlinked at various tropic levels

D) Is more real than food chain

312 / 332

312) Cellulose is a polymer of ?

A) Glucose

B) Starch

C) Lipids

D) Fructose

313 / 332

313) രണ്ട് ശ്വാസകോശങ്ങളുടെയും വായു അറകളുടെ ആകെ പ്രതല വിസ്തീർണ്ണം ഏകദേശം എത്ര ചതുരശ്ര മീറ്റർ ആണ്??

A) 70

B) 60

C) 50

D) 80

314 / 332

314) അടിമകൾ എങ്ങനെ ഉടമകളായി എന്ന മലയാള കൃതി രചിച്ചത്?

A) വിഷ്ണു ഭാരതീയൻ

B) കെ പി ആർ ഗോപാലൻ

C) എ കെ ഗോപാലൻ

D) പി കൃഷ്ണപിള്ള

315 / 332

315) Vertical distribution of different species occupying different levels in a biotic community is known as

A) Divergence

B) Zonation

C) Stratification

D) Pyramid

316 / 332

316) In in birds and mammals the oxygenated and deoxygenated blood is received by?

A) Left and right atria

B) Left atria and left ventricle

C) Left atria and right ventricle

D) Left and right ventricles

317 / 332

317) Oxygen Hb dissociation curve is ?

A) Parabola

B) Hyperbola

C) U shaped

D) Sigmoid

318 / 332

318) Protein with catalytic power is named ______?

A) Nucleic acids

B) Ribosome

C) Amino acids

D) Enzymes

319 / 332

319) കേരളത്തിൽ ജന്മി സമ്പ്രദായം നിർത്തലാക്കൽ പ്രാബല്യത്തിൽ വന്ന വർ?

A) 1963

B) 1970

C) 1957

D) 1967

320 / 332

320) The mineral distribution in tissue fluid is similar to that in?

A) Plasma

B) Serum

C) Blood

D) None of these

321 / 332

321) Plant biotechnology involves ?

A) all of these

B) production of virus free plants

C) rapid clonal multiplication of desired genotypes

D) production of valuable products in plants

322 / 332

322) In an ecosystem, organism occupies a specific place in a food chain called

A) Standing crop

B) Trophic level

C) Progressive straight line

D) Branching lines

323 / 332

323) A detritivore is

A) Animal feeding on dead and decaying organic matter

B) Animal feeding on plant matter

C) A plant feeding on an animal

D) Animal feeding on another animal

324 / 332

324) In an ecosystem, organism occupies a specific place in a food chain called ?

A) Branching lines

B) Trophic level

C) Standing crop

D) Progressive straight line

325 / 332

325) In a polysaccharide Chain Right end is called the ?

A) Reducing end

B) Non reducing end

326 / 332

326) The process of breaking down complex organic matter into inorganic substances like CO2 water and nutrient is called ?

A) humification

B) mineralisation

C) decomposition

D) leaching

327 / 332

327) The distal end of the filament is attached to [NCERT BASED]

A) Sepals

B) Thalamus only

C) Anther

D) Thalamus and petal

328 / 332

328) The process which refers to development of embryo is called ?

A) Gametogenesis

B) Oogenesis

C) Parthenogenesis

D) Embryogenesis

329 / 332

329) അബ്കാരി നിയമപ്രകാരം താഴെപ്പറയുന്നവയിൽ ശരിയായ ജോഡി ഏതെന്ന് കണ്ടെത്തുക

A) സെക്ഷൻ 3 (9) - സ്പിരിറ്റ്

B) സെക്ഷൻ 3 (8) - കള്ള്

C) സെക്ഷൻ 3 (6A) - ചാരായം

D) എല്ലാം ശരി

330 / 332

330) What is not correct with respect to testis in adults [NCERT]

A) Spherical in shape

B) Made up of 250 testicular compartments

C) 4-5 cm in length and width of 2-3 cm

D) Covered by a dense covering

331 / 332

331) Endospermic seeds are found in

A) Castor

B) Pea

C) Barley

D) Both a & b

332 / 332

332) Which of the following is correct for standard ECG ?

A) QRS Complex represent depolarization of ventricles

B) T marks the end of systole

C) T- wave represent the return of ventricle from excited to the normal state (repolarisation)

D) By counting the number of the QRS one can determine the heart rate of an individual

E) Q marks the beginning of systole

F) All are correct

G) P -WAVE represent excitation or depolarization of Atria

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