HSA Natural Science Model Exam : 9

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HSA Natural Science Model Exam : 9

HSA Model Exam :NATURAL SCIENCE

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HSA Natural Science Model Exam : 9 ( FEB 9 WEDNESDAY )

🛑 Questions : 100

🛑 Time : 1 Hour 30 Minutes

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1 / 100

1) Which one of the following techniques made it possible to genetically engineer living organisms?

A) X-ray diffraction

B) Heavier isotope labelling

C) Hybridization

D) Recombinant DNA techniques

2 / 100

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

A) Marchantia

B) Chara

C) Cucurbits

D) Sweet potato

3 / 100

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

A) 1

B) 3

C) 2

D) 4

4 / 100

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

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

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

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

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

5 / 100

5) Preamble is formulated after the Constitution is drafted ?

A) True

B) False

6 / 100

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

A) 21, 18 years

B) 15, 14 years

C) 18, 21 years

D) 15, 18 years

7 / 100

7) പ്രഭാവർമ്മയുടെ ആദ്യ ഇംഗ്ലീഷ് നോവൽ?

A) സച്ച് എ ലോങ്ങ്‌ ജേർണി

B) ദി കുക്കൂസ്‌ നെസ്റ്റ്

C) എ ഫൈൻ ബാലൻസ്

D) ആഫ്‌റ്റർ ദ ആഫ്‌റ്റർമാത്‌

8 / 100

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

A) 3,3,4

B) 2,2,4

C) 2,4,4

D) 2,3,4

9 / 100

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

A) AB

B) A

C) B

D) O

10 / 100

10) The protection and preservation of tribal life and culture were guaranteed by the scheduled district act of 1875 ?

A) False

B) True

11 / 100

11) Platelets are ?

A) All of these

B) Also called thrombocytes

C) Produced from megakaryocytes

D) Cell fragments

12 / 100

12) 2022 ൽ കായികമേഖലയിൽ പത്മശ്രീ പുരസ്കാരത്തിന് അർഹനായത്?

A) ശിവ ശങ്കർ

B) വാസുദേവൻ

C) ശങ്കരനാരായണൻ മേനോൻ

D) രാഘവ കുറുപ്പ്

13 / 100

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

A) Chalaza

B) Testa

C) Hilum

D) Micropyle

14 / 100

14) Bacillus thuringiensis forms protein crystals which contain insecticidal protein. This protein___?

A) is activated by acid pH of the foregut of the insect pest

B) does not kill the carrier bacterium which is itself resistant to this toxin.

C) is coded by several genes including the gene cry

D) binds with epithelial cells of midgut of the insect pest ultimately killing it

15 / 100

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

A) Source of energy is detritus.

B) Is never connected to GFC.

C) Composed of small chain of detritivores only.

D) Is also called auxiliary food chain.

16 / 100

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

A) Both 1 and 2

B) Nutrients

C) Hormones

17 / 100

17) SOLO taxonomy consists of levels?

A) 8

B) 4

C) 6

D) 2

18 / 100

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

A) Ameiotic thelytoky

B) Sexual reproduction

C) Asexual reproduction

D) Parthenogenesis

19 / 100

19) The basic categories of ecosystem are ___?

A) terrestrial

B) Both (a) and (b)

C) aquatic

20 / 100

20) Which is largest among the given lymphocytes?

A) Eosinophils

B) Monocytes

C) Lymphocytes

D) Basophils

21 / 100

21) പ്രഥമ ഇഎംഎസ് മന്ത്രിസഭയിൽ ഹരിജനക്ഷേമം ത്തിന്റെ യും തദ്ദേശസ്വയംഭരണത്തിന്റെയും ചുമതല വഹിച്ച വ്യക്തി?

A) ഡോ എ ആർ മേനോൻ

B) ചാത്തൻ മാസ്റ്റർ

C) ജോസഫ് മുണ്ടശ്ശേരി

D) കെ ആർ ഗൗരിയമ്മ

22 / 100

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

A) Flower in inflorescence

B) Formal organs

C) Veins and veinlets in a lamina

D) All of them

23 / 100

23) യാതന അനുഭവിക്കുന്നവരുടെ വിഭാഗത്തിൽനിന്ന് തിരുവിതാംകൂർ ലെജിസ്ലേറ്റീവ് അസംബ്ലിയിലേക്ക് നാമനിർദേശം ചെയ്യപ്പെട്ട ആദ്യ വ്യക്തി?

A) ശ്രീനാരായണഗുരു

B) തൈക്കാട് അയ്യ

C) അയ്യങ്കാളി

D) പണ്ഡിറ്റ് കറുപ്പൻ

24 / 100

24) Imbibition is ___?

A) Diffusion

B) Faciliated diffusion

C) An active transport

D) Primary active transport

25 / 100

25) The linking of antibiotic resistance gene with the plasmid vector became possible with __?

A) DNA ligase

B) DNA polymerase

C) endonucleases

D) exonucleases

26 / 100

26) 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

27 / 100

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

A) Maize

B) Casto

C) Orchids

D) Coconut

28 / 100

28) വൈക്കം സത്യാഗ്രഹികൾക്ക് സൗജന്യ ഭക്ഷണശാല തുടർന്ന് സഹായം നൽകിയത് ആര്?

A) കാശ്മീരികൾ

B) ബംഗാളികൾ

C) ആസാമീസ്

D) അകാലികൾ

29 / 100

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

A) Irregular

B) Spindle shaped

C) Upright

D) Inverted

30 / 100

30) 2022 ഓസ്ട്രേലിയൻ ഓപ്പൺ പുരുഷ കിരീടം നേടിയത് ?

A) ഡൊമനിക് തീം

B) റാഫേൽ നദാൽ

C) നൊവാക് ജോക്കോവിച്ച്

D) ഡാനിൽ മെ‍ദ്‌വദേവ്

31 / 100

31) Genetic engineering is possible, because ___?

A) we can see DNA by electron microscope

B) restriction endonucleases purified from bacteria can be used in vitro

C) we can cut DNA at specific sites by endonucleases like DNase I

D) the phenomenon of transduction in bacteria is well understood

32 / 100

32) 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 help in maturation of sperms

C) Are present in interstitial space and secrete androgens

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

33 / 100

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

A) AB

B) O

C) B

D) A

34 / 100

34) If a pressure greater than atmospheric pressure is applied to pure water or solution, it's water potential __?

A) First increase and then become zero

B) Remains the same

C) Increases

D) Decreases

35 / 100

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

A) net productivity

B) gross primary productivity

C) net primary productivity

D) secondary productivity

36 / 100

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

A) Tap roots

B) Adventitious roots

C) Fiberous roots

D) Nodular roots

37 / 100

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

A) Left ventricle

B) Right Atrium

C) Left Atrium

D) Right ventricle

38 / 100

38) Leucocytes are colorless due to ?

A) Lack of hemoglobin

B) Presence of white colour pigments

C) Lack of water

D) Presence of Ca+2 ions

39 / 100

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

A) Plasma

B) Serum

C) None of these

D) Blood

40 / 100

40) Four chambered heart is not present in ?

A) Crocodile

B) Birds

C) Amphibians

D) Mammals

41 / 100

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

A) Cassia

B) Trifolium

C) Lupin

D) Indigofera

42 / 100

42) Conversion of fibrinogen is catalyzed by ?

A) Thrombin

B) Thromboplastin

C) All of the above

D) Prothrombin

43 / 100

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

A) Forest

B) Ocean

C) Mountain

D) Desert

44 / 100

44) What would be Ψp of a fully flaccid cell ?

A) +2

B) +3

C) 0

D) -3

45 / 100

45)

A) C

B) D

C) B

D) A

46 / 100

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

A) producer

B) decomposer

C) consumer

D) parasite

47 / 100

47) Two or more aspects are understood in ?

A) Rational level

B) Extended abstract level

C) Multistructural level

D) Unistructural lever

48 / 100

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

A) First mitosis then meiosis

B) Mitosis

C) First meiosis then mitosis

D) Meiosis

49 / 100

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

A) It contains two diploid cells

B) Both A & C

C) It contains vegetative cell & genetative cell

D) It contains one haploid cells

50 / 100

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

A) Both above

B) Sympathetic nervous system

C) Parasympathetic neural system

51 / 100

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

A) Lymphocytes >> Acidophils >> basophils >> Neutrophils >>Monocytes

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

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

D) Neutrophils >> lymphocytes >> Monocytes >> Acidophils >> basophils

52 / 100

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

A) Progestasert

B) Multiload 375

C) Cu7

D) CuT

53 / 100

53) When the heart stop beating condition is called ?

A) Cardiac arrest

B) Heart attack

C) Heart failure

D) Congestive heart Failure

54 / 100

54) Imbibition causes ___?

A) Increase in the volume of imbibant but no pressure development

B) Decrease in the volume of imbibant and pressure develops

C) No change in volume of imbibant but pressure develops

D) Volume of imbibant increases and pressure develops

55 / 100

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

A) All Of the Above

B) Fibrin protein

C) Dead and damaged formed element

56 / 100

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

A) Wheat

B) Maize

C) Castor

D) Papaya

57 / 100

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

A) Left and right ventricles

B) Left atria and right ventricle

C) Left and right atria

D) Left atria and left ventricle

58 / 100

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

A) Genus of plants

B) Species of plant

C) None of these

D) Order of plants

59 / 100

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

A) inside, scrotum

B) outside, vas deferens

C) inside, testicular lobules

D) outside, scrotum

60 / 100

60) Syngenesious condition of stamen is found in family ?

A) Asteraceae

B) Malvaceae

C) Liliaceae

D) Cruciferae

61 / 100

61) Plant absorbents consists of ___?

A) Lignin like chemical

B) Cellulose and pectin

C) Hydrophobic colloid

D) Hydrophilic colloids

62 / 100

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

A) T marks the end of systole

B) All are correct

C) Q marks the beginning of systole

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

E) QRS Complex represent depolarization of ventricles

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

G) P -WAVE represent excitation or depolarization of Atria

63 / 100

63) Seeds when soaked in water, they imbibe it because of ___?

A) Water potential gradient between the seed coat and water

B) DPD of seed is very much low

C) OP of water is high

D) O. P. inside the seed is low

64 / 100

64) Which one of the following is now being commercially produced by biotechnological procedures ___?

A) Quinine

B) Morphine

C) Insulin

D) Nicotine

65 / 100

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

A) WBC

B) RBC

C) Interstitial fluid

D) Serum

66 / 100

66) The rules of presenting the contents to make them easy are called ?

A) Techniques of teaching

B) Method of teaching

C) Teaching strategies

D) Maxims of teaching

67 / 100

67)

ഇന്ത്യൻ ഭരണഘടന ഭേദഗതി ചെയ്യുന്നതിനുള്ള രീതികൾ താഴെ പറയുന്നവയിൽ ഏതൊക്കെ ആണ്?
1. പാർലമെന്റിന്റെ കേവല ഭൂരിപക്ഷതോടെയുള്ള ഭേദഗതി
2. പാർലമെന്റിന്റെ മൂന്നിൽ രണ്ട് ഭൂരിപക്ഷതോടെയുള്ള ഭേദഗതി
3. പാർലമെന്റിന്റെ പ്രത്യേക ഭൂരിപക്ഷതോടെയുള്ള ഭേദഗതി

A) രണ്ടു മാത്രം

B) ഇവ എല്ലാം ശരിയാണ്

C) ഒന്നുമാത്രം

D) ഒന്നും രണ്ടും മാത്രം

68 / 100

68) 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) Filiform apparatus

D) Egg cell

69 / 100

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

A) 4

B) 2

C) 1

D) 8

70 / 100

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

A) Semilunar valve

B) Bicuspid valve

C) Tricuspid valve

D) Mitral valve

71 / 100

71) SOLO stands for ..........

A) System of the observed learning outcome

B) structure of the observed learning output

C) System of the observed learning output

D) Structure of the observed learning outcome

72 / 100

72) 2021 വേൾഡ് ഗെയിംസ് അത്‌ലറ്റ് ഓഫ് ദി ഇയർ പുരസ്കാരം നേടിയത് ?

A) പി ആർ ശ്രീജേഷ്

B) നീരജ് ചോപ്ര

C) റാണി റാംപാൽ

D) അഞ്ജു ബോബി ജോർജ്

73 / 100

73) When does a concentration gradient exists ?

A) When members rupture

B) When solute concentration is high

C) When solute concentration are low

D) When solute concentration differ on either side of a membrane

74 / 100

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

A) Fabaceae

B) Liliaceae

C) Solanaceae

D) Poceae

75 / 100

75) Economic liberty is embodied in the Preamble to the constitution of india.

A) True

B) False

76 / 100

76) When a plasmolysed cell is placed in water or hypotonic solution, what happens ?

A) T. P. of cell decreases

B) T. P. of cell becomes zero

C) T. P. Increases

D) Water potential of cell decreases

77 / 100

77) Edible part of apple and pear is___?

A) Mesocarp

B) Endocarp

C) Epicarp

D) Thalamus

78 / 100

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

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

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

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

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

79 / 100

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

A) Infundibulum

B) Cervical canal

C) Isthmus

D) Ampulla

80 / 100

80) Maize grain is a fruit known as ?

A) Caryopsis

B) Cypsela

C) Achene

D) Legume

81 / 100

81) Open circulatory system is present in ?

A) Humans

B) Annelids

C) Chordates

D) Arthropod and molluscs

82 / 100

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

A) Homeostasis

B) Imbalance

C) Shortage of components

D) Deficiency of light

83 / 100

83) Plasma without clotting factor is called ?

A) Serum

B) Semen

C) Tissue

D) Lymph

84 / 100

84) The goal of teaching is ?

A) to give information

B) To impart knowledge

C) To involve pupils in activities

D) Desirable change in behavior

85 / 100

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

A) The rhythm method

B) Use of physical barriers

C) Intra uterine devices

D) Sterilisation technique

86 / 100

86) 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) Middle layers

D) Endothecium

87 / 100

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

A) n , 2n , n , 2n

B) n , n , 2n , 2n

C) 2n, 2n , n , n

D) 2n , n , 2n , n

88 / 100

88) Water potential of imbibants is___?

A) Zero

B) Always possible

C) Highly positive

D) Highly negative

89 / 100

89) In teaching experienced members guide the immature one’s for.............

A) Spending time

B) Qualification

C) Adjustment of life

D) Quality of life

90 / 100

90) Trophic levels are formed by :___?

A) Carnivores

B) Animals

C) Organisms linked in food chain

D) Plants

91 / 100

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

A) Detritus food chain

B) Grazing food chain

C) Parasitic food chain

D) Both grazing food chain and parasitic food chain

92 / 100

92) The process which brings about entry of water into seed coat when seeds are placed in water for germination is ___?

A) Diffusion

B) Imbibition

C) Osmosis

D) DPD

93 / 100

93) Which of the following statement is incorrect ?

A) Asexual reproduction is a rapid mode of reproduction

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

C) Embryogenesis involves cell division and cell differentiation

D) Animals are either unisexual or bisexual

94 / 100

94) What is antisense technology ___?

A) A cell displaying a foreign antigen used for synthesis of antigens

B) Production of somaclonal variants in tissue cultures

C) RNA polymerase producing DNA

D) When a piece of RNA that is complementary in sequence is used to stop expression of a specific gene

95 / 100

95) ഗാർഹിക ഉപഭോക്താക്കൾക്ക് സോളാർ പ്ലാന്റ് സ്ഥാപിക്കുന്നതിനായുള്ള അനെർട്ട് പദ്ധതി?

A) സോളാർ സ്റ്റാർട്ട്‌

B) സൂര്യ തേജസ്‌

C) ജ്യോതിസ്സ്

D) സൗര തേജസ്‌

96 / 100

96) With reference to solo taxonomy one aspect of a task is understood in ?

A) Unistructural level

B) Extended abstract level

C) Rational level

D) Multistructural level

97 / 100

97) 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) 1 Only

C) 3 & 2

D) 2 Only

98 / 100

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

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

A) i and ii

B) ii and iii

C) i and iii

D) i and iv

99 / 100

99) Which is not the focal point of the triangular process of teaching ?

A) contents

B) Teaching method

C) Pupil

D) Teacher

100 / 100

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

A) Plasminogen and Calcium together

B) Heparin

C) Prothrombin and Calcium together

D) Prothrombin

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The average score is 37%

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After taking a Mock Test, you should always asses:

1. The time taken to solve every section.
2. The most time consuming questions.
3. The sections that were easiest and hardest for you.
4. Average time taken to solve a section.

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