CUSAT CAT 2022 Question Paper Zoology

ZOOLOGY
(FINAL)

1. Which of the following vitamins is fat soluble?
(A) Vitamin B3
(B) Vitamin B7
(C) Vitamin E
(D) Vitamin B12

2. Water vascular system is found in

(A) Porifera
(B) Coelenterata
(C) Arthropoda
(D) Echinodermata

3. The cellular and molecular control of programmed cell death is known as

(A) apoptosis
(B) ageing
(C) degeneration
(D) necrosis

4. Which of the following factors could lead to variations in the offspring of asexually
reproducing organisms?

(A) Crossing over
(B) Fertilization
(C) Mutation
(D) Independent assortment

5. Which of the following refers to Moriculture?

(A) Culture of fishes
(B) Culture of mulberry
(C) Culture of silkworms
(D) Culture of bees

6. Glycogenolysis is the function of liver associated with the conversion of

(A) protein into glucose
(B) glucose into glycogen
(C) glucose into fats
(D) glycogen into glucose

7. Symmetry of jellyfish is

(A) quadriradial
(B) bilateral
(C) radial
(D) asymmetrical

8. Which cells in the pancreas secrete glucagon that convert liver glycogen into glucose?

(A) Beta cells
(B) Alpha cells
(C) Delta cells
(D) Gamma cells

9. The poultry birds exclusively grown for meat are called as

(A) Layers
(B) Broilers
(C) Rooster
(D) Cockerel

10. Which of the following sets hormones is responsible for the
“fight-or-flight” response?

(A) Thyroxin and melatonin
(B) Insulin and glucagon
(C) Estrogen and progesterone
(D) Epinephrine and norepinephrine

11. Some animals adopt a similar state like sleep to reduce their metabolic rate in
winter. It is called

(A) Migration
(B) Transpiration
(C) Hibernation
(D) Aestivation

12. Shelford’s law of tolerance is named after

(A) Ernest Shelford
(B) James Shelford
(C) Jacob Shelford
(D) Ronaldo Shelford

13. Which of these structures protects the eyes of the frog in water?

(A) Cloaca
(B) Tympanum
(C) Bidder’s canal
(D) Nictitating membrane

14. The period immediately after birth to four weeks of age is called

(A) Infancy
(B) Neonatal
(C) Adolescent
(D) Senescent

15. Implantation is the process of

(A) attachment of blastocyst to uterine wall
(B) egg fertilization
(C) degeneration of egg
(D) egg movement

16. The contractile vacuole in protozoans is chiefly concerned with the process of

(A) digestion
(B) osmoregulation
(C) excretion
(D) assimilation

17. The phenomenon of ‘cell drinking’ is referred to as

(A) Phagocytosis
(B) Exocytosis
(C) Endocytosis
(D) Pinocytosis

18. The vertebrate animal that has a gizzard in the alimentary canal

(A) Pigeon
(B) Frog
(C) Rat
(D) Lizard

19. Pearl oyster belongs to

(A) Gastropoda
(B) Cephalopoda
(C) Scaphapoda
(D) Pelecypoda

20. Malaria is transmitted by

(A) Anopheles
(B) Culex
(C) Aedes
(D) Housefly

21. In elasmobranches, the type of scales is

(A) Ganoid
(B) Cycloid
(C) Placoid
(D) Cosmoid

22. Sunderban Wetland is located in

(A) Maldives
(B) Nicobar Island
(C) Orissa
(D) West Bengal

23. Binomial nomenclature was proposed by

(A) Robert Whittaker
(B) Carl Linnaeus
(C) Charles Darwin
(D) Gregor Mendel

24. In arthropods, X-organ produces the

(A) growth hormone
(B) ecdysone
(C) gonadotropin
(D) molting inhibiting hormone

25. Red Data Book is published by

(A) WHO
(B) IUCN
(C) UNEP
(D) UNESCO

26. Echolocation technique is found in

(A) Elephant
(B) Dolphin
(C) Lion
(D) Octopus

27. Where are “Islets of Langerhans” found?

(A) Anterior pituitary
(B) Cortex
(C) Spleen
(D) Endocrine pancreas

28. Animals in which nitrogen is excreted predominantly in the form of urea are

(A) Ammonotelic
(B) Aminotelic
(C) Ureotelic
(D) Uricotelic

29. Which among the following is necessary to carry out blood
coagulation in a cut or wound?

(A) Thrombocytes
(B) Blood plasma
(C) Leukocytes
(D) Red Blood Cells

30. The contraction and expansion movement of the walls of the food pipe is called

(A) translocation
(B) peristalsis
(C) transpiration
(D) digestion

31. Holoenzyme is made of

(A) Apoenzyme and zymogen
(B) Apoenzyme and co-enzyme
(C) Co-enzyme and prosthetic group
(D) Prosthetic group and co-factor

32. Cystic Fibrosis and Haemophilia are examples of

(A) hereditary diseases
(B) infectious diseases
(C) deficiency diseases
(D) degenerative diseases

33. Amniocentesis is a method for

(A) determination of foetal health
(B) inducing abortion
(C) artificial insemination
(D) determination of amino acid sequence

34. Anglo-Nubian is a breed of

(A) goat
(B) cat
(C) poultry
(D) cow

35. Pyorrhoea is a disease which affects the

(A) heart
(B) gums
(C) lungs
(D) kidney

36. Of the following taxonomical categories, which is the most inclusive
(that is the highest in hierarchy)?

(A) Order
(B) Species
(C) Genus
(D) Class

37. Which of the following vitamins functions as both hormone and visual pigment?

(A) Thiamine
(B) Riboflavin
(C) Retinal
(D) Folic acid

38. Eugenics is the study of

(A) different races of mankind
(B) different races of apes
(C) genetics of plants
(D) altering genetic components of mankind

39. Paleontology is a branch of science that deals with the

(A) behaviour of animals
(B) fossils of plants and animals
(C) origin and growth of plants
(D) formation of stars

40. The vein which brings clean blood from the lungs into the heart is

(A) Pulmonary vein
(B) Hepatic vein
(C) Superior vena cava
(D) Pulmonary artery

41. Hypertonic environment results in loss of water and ultimately the cell

(A) die
(B) wilt
(C) shrink
(D) turgid

42. Respiration that occurs in the presence of oxygen is called

(A) Fermentation
(B) Anaerobic respiration
(C) Glycolysis
(D) Aerobic respiration

43. Which among the following is the correct sequence of steps involved
in the process of Human Digestion?

(A) Digestion, Ingestion, Assimilation, Egestion and Absorption
(B) Ingestion, Digestion, Absorption, Assimilation and Egestion
(C) Egestion, Absorption, Digestion, Assimilation and Ingestion
(D) Assimilation, Absorption, Ingestion, Digestion and Egestion

44. Movement of particles or molecules against concentration gradient is called

(A) active transport
(B) osmosis
(C) passive transport
(D) diffusion

45. The membranous covering of the brain is called

(A) meninges
(B) pericardium
(C) pleura
(D) peritoneum

46. Animals adapting to a similar condition, resulting in superficial similarities in the
structures is termed as

(A) biological evolution
(B) structural evolution
(C) divergent evolution
(D) convergent evolution

47. Cells produced as a result of cleavage are named as

(A) morula
(B) blastomeres
(C) blastula
(D) zygote

48. Nymph is the name of young ones of

(A) housefly
(B) beetle
(C) cockroach
(D) honey bee

49. Myopia is connected with

(A) eye
(B) ears
(C) lungs
(D) kidney

50. Total number of chromosome in Down’s syndrome is

(A) 49
(B) 48
(C) 46
(D) 47

51. Example of micronutrients is

(A) carbohydrates
(B) proteins
(C) vitamins
(D) fats

52. Mordant used in Gram staining is

(A) crystal violet
(B) safranin
(C) acid alcohol
(D) iodine

53. Dipnoi are considered as

(A) flying fish
(B) jumping fish
(C) lung fish
(D) cat fish

54. Parental care is well performed in

(A) Hippocampus
(B) Exocoetus
(C) Scoliodon
(D) Echeneis

55. Retrogressive metamorphosis is the characteristic feature of

(A) branchiostoma
(B) tongue worm
(C) lamprey
(D) sea squirt

56. A reptile that has two-chambered ventricle

(A) tortoise
(B) crocodile
(C) snake
(D) lizard

57. Neumatic bones are found in

(A) whale
(B) frog
(C) shark
(D) birds

58. When the power of ocular lens is 10 X and objective lens is 20 X, the magnification is

(A) 30 times
(B) 200 times
(C) 2000 times
(D) 20 times

59. Neurofibril nodes were formerly called as

(A) nodes of ranveir
(B) schwann cells
(C) myofibrils
(D) motor nerves

60. In sickle cell anaemia, the defect lies in which polypeptide?

(A) Beta chain
(B) Alpha chain
(C) Gamma chain
(D) Delta chain

61. Maceration is a process carried out in stomach during digestion, involving

(A) breakdown of fats
(B) breakdown of food into chime
(C) breakdown of carbohydrates
(D) breakdown of proteins

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62. Which among the following is known as 5p (5p minus) syndrome?

(A) Down’s syndrome
(B) Turner’s syndrome
(C) Klinefelter’s syndrome
(D) Cri-du-chat syndrome

63. Which tissue acts as first line of protection for body from
any physical or chemical damage?

(A) Adipose tissue
(B) Areolar tissue
(C) Muscular tissue
(D) Epithelial tissue

64. A change due to experience in behaviour of an organism is known as

(A) maturation
(B) social behaviour
(C) learning
(D) imprinting

65. If cleavages cannot divide embryo completely, resulting cleavages are called as

(A) vertical cleavages
(B) horizontal cleavages
(C) holoblastic cleavages
(D) meroblastic cleavages

66. Phenomenon of bio-magnification is shown by

(A) distillery wastes
(B) domestic waste
(C) heavy metals
(D) gases

67. Which of the following types of cell division takes place in gonads?

(A) Mitosis
(B) Amitosis
(C) Both (A) and (B)
(D) Meiosis

68. Kaziranga National Park is situated in

(A) Assam
(B) Gujarat
(C) Karnataka
(D) Tamil Nadu

69. Peripatus is a connecting link between the following

(A) annelids and molluscs
(B) annelids and arthropods
(C) molluscs and echinoderms
(D) annelids and Platyhelminthes

70. A symbiotic inter specific relationship where one partner is benefitted and the other
partner is neither harmed nor benefitted is

(A) parasitism
(B) commensalism
(C) mutualism
(D) symbiosis

71. Scapula is a bone of

(A) Vertebral column
(B) Skull
(C) Pelvic girdle
(D) Pectoral girdle

72. Air bladder is

(A) Excreatory organ of mammals
(B) Respiratory organ of cephalopods
(C) Hydrostatic organ of bony fish
(D) Excreatory organ of fish

73. Which among the following is the shape of human erythrocytes?

(A) Spherical
(B) Convex
(C) Concave
(D) Bi-concave

74. Which of the following is NOT a function of plasma membrane?

(A) Intracellular interactions
(B) Responding to external stimuli
(C) Energy transduction
(D) Assist in chromosomal segregation

75. Which of the following fossil men was expert in making tools,
weapons and paintings?

(A) Peking man
(B) Cro magnon man
(C) Java ape man
(D) Neanderthal man

76. ……………….. acts as excretory organ in adult Ascaris.

(A) Excretory canal
(B) Renette cells
(C) Nephridia
(D) Malpighian tubules

77. Ink gland is found in

(A) Pila
(B) Mytilus
(C) Unio
(D) Sepia

78. Larva of Urochordata is known as

(A) Bipinnaria larva
(B) Tunicate larva
(C) Tornaria larva
(D) Auricularia larva

79. Vipera russelli belongs to the order

(A) Cotylosauria
(B) Crocodila
(C) Squamata
(D) Rhyncocephalia

80. Keratin is the type of protein that makes

(A) blood
(B) feathers
(C) hormones
(D) neuron

81. In birds, the sound vibration is produced by

(A) syringeal membrane
(B) trachea
(C) hyoid apparatus
(D) arytenoid cartilages

82. Chiroptera is

(A) Crepuscular
(B) Nocturnal
(C) Diurnal
(D) Cathemeral

83. In mammals, the sweat glands are also known as
(A) Endocrine glands
(B) Poison glands
(C) Green glands
(D) Sudoriferous glands

84. The cell was first discovered by Robert Hooke in the year

(A) 1665
(B) 1666
(C) 1675
(D) 1676

85. Which of the following cells have many nuclei?

(A) Red blood cells
(B) Osteoclasts
(C) Liver cells
(D) Keratinocytes

86. The DNA wraps around histone proteins to form

(A) Nucleolus
(B) Nucleoplasm
(C) Nucleosome
(D) Microfilaments

87. Nucleic acid was first discovered by

(A) Friedrich Miescher
(B) Watson and Crick
(C) Albrecht Kossel
(D) S.J. Singer

88. Buffers are mixtures of

(A) Strong acid and strong base
(B) Strong acid and weak base
(C) Weak acid and their conjugate base
(D) Strong base and their conjugate acid

89. The net gain of ATP during the conversion of glucose to pyruvate is

(A) 1 ATP
(B) 2 ATP
(C) 1 ATP + 1 GTP
(D) 4 ATP

90. The first amino acid discovered is

(A) Asparagine
(B) Aspartate
(C) Glutamate
(D) Glutamine

91. Enzymes are polymers of

(A) Hexose sugar
(B) Amino acids
(C) Fatty acids
(D) Inorganic phosphate

92. The sugar molecule in a nucleotide is

(A) Pentose
(B) Hexose
(C) Tetrose
(D) Triose

93. Penicillin is an antibiotic discovered by Alexander Fleming from

(A) Bacteria
(B) Fungi
(C) Virus
(D) Algae

94. In ……………….. phase, the population of bacteria increase in a logarithmic fashion.

(A) Lag phase
(B) Log phase
(C) Stationary phase
(D) Death phase

95. Antimicrobial substances used on living tissues to reduce the infection from
pathogens are known as

(A) Disinfectants
(B) Antiseptics
(C) Sepsis
(D) Putrification

96. Recombination occurs in ……………….. substage of Prophase-I of Meiosis.

(A) Leptotene
(B) Zygotene
(C) Pachytene
(D) Diplotene

97. The geometrical device that helps to find out all the possible combinations of male
and female gametes is known as

(A) Bateson Square
(B) Mendel Square
(C) Punnett Square
(D) Morgan Square

98. An allele is

(A) another word for a gene
(B) a homozygous genotype
(C) a heterozygous genotype
(D) one of several possible forms of a gene

99. In human beings, males are much more likely to have hemophilia (a failure of blood
to clot properly) than females. This is the case because

(A) hemophilia is a contagious disease to which males are more susceptible
(B) the gene for hemophilia is carried on the Y chromosome
(C) hemophilia is carried on the autosomes
(D) the gene for hemophilia is sex-linked

100. Extra nuclear genetic material is found in

(A) Ribosome
(B) Centriole
(C) Endoplasmic Reticulum
(D) Mitochondria

101. The transfer of genetic material from one bacterium to another by virus is

(A) Transduction
(B) Translation
(C) Conjugation
(D) Transformation

102. Ultraviolet radiation on DNA induce mutation by

(A) formation of thymine dimmers
(B) methylation of base pairs
(C) deletion of base pairs
(D) addition of base pairs

103. When a single nucleotide base pair is substituted, the type of mutation is known as

(A) inversion
(B) random mutation
(C) point mutation
(D) mispairing

104. Karyotyping can be done from

(A) any cell in your body
(B) only sex cells
(C) only embryonic cells
(D) only somatic cells

105. Which one of the following pairs is mismatched?

(A) Savanna – Tiger
(B) Tropical evergreen forest – Jaguar
(C) Tundra – Polar Bear
(D) Desert – Sidewinder Snake

106. In a lake ecosystem, the bottom area is known as

(A) Littoral zone
(B) Limnetic zone
(C) Profundal zone
(D) Tidal zone

107. Which of the following is a denitrifying bacteria?

(A) Bacillus
(B) Pseudomonas
(C) Clostridium
(D) Azotobacter

108. Addition of nitrate and phosphate fertilizers into water bodies lead to

(A) increased growth of decomposers
(B) increased fish growth
(C) increased zooplankton growth
(D) eutrophication

109. SO2 pollution is indicated by

(A) Mosses
(B) Lichens
(C) Climbers
(D) Grasses

110. Minamata disease is due to pollution by

(A) organic waste into drinking water
(B) oil spills in oceans
(C) industrial waste mercury into fishing water
(D) entry of cadmium into drinking water

111. In Bhopal gas tragedy, which of the following compounds was
responsible for pollution?

(A) NH4OH
(B) CH3NCO
(C) CH3NH2O
(D) CHCL3

112. Yellow coloured bins are used to collect

(A) general waste
(B) plastics
(C) infected waste
(D) glassware

113. ……………….. is defined as the study of the characteristics and
parameters of the population.

(A) Demography
(B) Population ecology
(C) Population density
(D) Mortality

114. The relationship seen in lichen is

(A) parasitism
(B) commensalism
(C) symbiosis
(D) mutualism

115. Ecological role played by an organism is called

(A) trophic structure
(B) niche
(C) habit
(D) habitat

116. Which country hosted the first world earth summit on conservation of environment?

(A) Spain
(B) Peru
(C) Brazil
(D) India

117. Constant regulation of organs to internal and external changes is known as

(A) Thermoregulation
(B) Ionic regulation
(C) Homeostasis
(D) Adaptations to pressure

118. Animals that cannot regulate their body temperature are known as

(A) poikilotherms
(B) homeotherms
(C) endotherms
(D) ectotherms

119. The metabolic process by which an organism receives energy is known as

(A) Oxidation
(B) Reduction
(C) Respiration
(D) Phosphorylation

120. Cutaneous respiration is NOT seen in which of the following animals?

(A) Insects
(B) Amphibians
(C) Fish
(D) Birds

121. ……………….. is used to test the pulmonary functions.

(A) Spirometer
(B) Oxymeter
(C) Glucometer
(D) Nebulizer

122. Circulatory system is absent in

(A) Liver fluke
(B) Tapeworm
(C) Jelly fish
(D) Flatworm

123. The removal of interstitial fluid from the tissues is carried out by

(A) Cardiovascular system
(B) Lymphatic system
(C) Excretory system
(D) Respiratory system

124. Supply of blood to the lungs and to all other body organs and systems is done by

(A) ventricular diastole
(B) ventricular systole
(C) atrial diastole
(D) atrial sysstole

125. High blood pressure is

(A) 140 or more systolic mm HG
(B) 90 or more systolic mm HG
(C) less than 120 systolic mm HG
(D) less than 80 diastolic mm HG

126. Which of the following groups of animals is Uricotelic?

(A) Insects
(B) Fishes
(C) Crustaceans
(D) Echinoderms

127. A species inhabiting different geographical areas is known as

(A) Sympatric
(B) Allopatric
(C) Siblings
(D) Biospecies

128. Hardy-Weinberg equation is given as

(A) p + 2 pq + q = 1
(B) p2 + q = 1
(C) p 2 + 2 pq + q 2 = 1
(D) q2 + p = 1

129. Change of allele frequency due to random sampling is known as

(A) gene expression
(B) gene linkage
(C) genetic drift
(D) gene mutation

130. ……………….. ecogeographical rule states that animals adapted to cold climates
have shorter limbs and body appendages than animals adapted to warm climates.

(A) Allen's rule
(B) Bergmann's rule
(C) Island rule
(D) Thorson's rule

131. The molecular clock hypothesis states that

(A) the molecules are constant for long times
(B) the mutations in DNA accumulate at roughly a constant rate
(C) the matings are random in this population
(D) the prokaryotes are more easily classified than eukaryotes

132. Which of the following theories of evolution can best explain the vestigial organs?

(A) Darwinism
(B) Lamarckism
(C) Natural selection
(D) Special creation

133. ……………….. principle states that the genetic variation in a population will remain
constant from one generation to the next in the absence of disturbing factors.

(A) Genetic drift
(B) Natural selection
(C) Founder effect
(D) Hardy–Weinberg equilibrium

134. Ontogeny is called as

(A) the development of the head
(B) the development of cancer cells
(C) the development of appendages
(D) the development of an individual organism

135. Piercing and sucking type mouth- Parts are present in

(A) Diptera
(B) Orthoptera
(C) Lepidoptera
(D) Isoptera

136. The sting apparatus is absent in

(A) Worker bees
(B) Nursing bees
(C) Drones
(D) Queen

137. Which of the following is an Agricultural pest?

(A) Musca domestica
(B) Aedes aegypti
(C) Pediculus humanis
(D) Chilo infuscatellus

138. ……………….. produces testosterone in the presence of luteinizing hormone.

(A) Leydig cells
(B) Sertoli cells
(C) Spermatogonia
(D) Primary spermatocytes

139. The mechanism in which the signal from one part of the embryo can determine the
fate of the surrounding cells is known as

(A) morphogen gradient
(B) differentiation
(C) determination
(D) induction

140. Sparse and even distribution of yolk is seen in ……………….. eggs.

(A) Mesolecithal
(B) Telolecithal
(C) Isolecithal
(D) Centrolecithal

141. The Irreversible learning developed at the very early stage is known as

(A) Habituation
(B) Imprinting
(C) Spatial learning
(D) Cognitive learning

142. The practice of mating of animals in the absence of any social bonds is known as

(A) Monogamy
(B) Polygamy
(C) Polygyny
(D) Promiscuity

143. ……………….. is the change of coloration and patterns by the animals similar to
those in the visual background.

(A) Camouflage
(B) Flash coloration
(C) Aposematism
(D) Warning colouration

144. Which of the following hormones have a short chain of amino acids?

(A) Amino acid derived hormones
(B) Lipid derived hormones
(C) Carbohydrate derived hormones
(D) Peptide hormones

145. Cortisol is a steroid hormone secreted by

(A) Pancreas
(B) Gonads
(C) Adrenal gland
(D) Parathyroid glands

146. Which of the following is a primary lymphoid organ?

(A) Lymph nodes
(B) Spleen
(C) Bone marrow
(D) Tonsils

147. Which of the following cells is an agranulocyte?

(A) Monocytes
(B) Eosinophils
(C) Basophils
(D) Neutrophils

148. Antibodies are synthesized exclusively by

(A) Bone marrow cells
(B) T-cells
(C) B-cells
(D) Lymph

149. The process of introduction of attenuated pathogen that causes a disease is called

(A) Immunization
(B) Vaccination
(C) Attenuation
(D) Sterilization

150. The first vaccine was developed against

(A) Pox virus
(B) Hepatitis virus
(C) Rabies virus
(D) Polio virus

FINAL ANSWER KEY
Subject Name: 615 ZOOLOGY
SI No. Key SI No. Key SI No. Key SI No. Key SI No. Key
1 C 31 B 61 B 91 B 121 A
2 D 32 A 62 D 92 A 122 C
3 A 33 A 63 D 93 B 123 B
4 C 34 A 64 C 94 B 124 B
5 B 35 B 65 D 95 B 125 A
6 D 36 D 66 C 96 C 126 A
7 C 37 C 67 D 97 C 127 B
8 B 38 D 68 A 98 D 128 C
9 B 39 B 69 B 99 D 129 C
10 D 40 A 70 B 100 D 130 A
11 C 41 C 71 D 101 A 131 B
12 A 42 D 72 C 102 A 132 B
13 D 43 B 73 D 103 C 133 D
14 B 44 A 74 D 104 A 134 D
15 A 45 A 75 B 105 A 135 A
16 B 46 D 76 B 106 C 136 D
17 D 47 B 77 D 107 B 137 D
18 A 48 C 78 B 108 D 138 A
19 D 49 A 79 C 109 B 139 A
20 A 50 D 80 B 110 C 140 C
21 C 51 C 81 A 111 B 141 B
22 D 52 D 82 B 112 C 142 D
23 B 53 C 83 D 113 A 143 A
24 D 54 A 84 A 114 D 144 D
25 B 55 D 85 B 115 B 145 C
26 B 56 B 86 C 116 C 146 C
27 D 57 D 87 A 117 C 147 A
28 C 58 B 88 C 118 A 148 C
29 A 59 A 89 B 119 C 149 B
30 B 60 A 90 A 120 D 150 C