CUSAT CAT 2017 Question Paper Zoology

ZOOLOGY
(Final)

1. The science of classification of biodiversity is

(A) Ecology (B) Parasitology
(C) Genetics (D) Taxonomy

2. Study of interaction between living organisms and environment is called

(A) Ecosystem (B) Eco-geography
(C) Ecology (D) Endemism

3. All the living organisms of the earth constitute

(A) Biosphere (B) Community
(C) Biome (D) Association

4. Estuary ecosystem is maintained in

(A) River running water (B) Confluence of river with sea
(C) Intertidal region (D) Deep seas

5. Classification of cold blooded and warm blooded animals is on the basis of

(A) Influence of temperature
(B) Temperature tolerance
(C) Morphological variations
(D) Capacities to tolerate extreme temperatures

6. Hibernation is observed in

(A) Poiklotherms (B) Homotherms
(C) Stenohaline (D) Euryhaline

7. Zone which extends up to the depth of light penetration is

(A) Profundal zone (B) Abyssel zone
(C) Eulittoral zone (D) Euphotic zone

8. Benthos are animals living at

(A) Surface waters (B) Deep sea waters
(C) Euphotic zone (D) Eulittoral zone

9. The basic unit of classification is

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

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10. Organism that are independent of water current for their locomotion

(A) Plankton (B) Nekton
(C) Benthos (D) Neustons

11. The mantle covering the earth which protects the life on earth from U.V. radiation

(A) Ozone layer (B) Oxygen layer
(C) Chlorine layer (D) None of the above

12. Main causes of pollution

(A) Population increase
(B) Industrialisation
(C) Growing vehicular traffic
(D) All the above

13. Flurocarbons destroy

(A) Forests (B) Rivers
(C) Ozone umbrella (D) CO2 umbrella

14. Atmosphere gets heated by

(A) Excess CO2 (B) Excess No2
(C) Excess SO2 (D) Excess CO

15. Biological magnification occurs through

(A) Biodegradable pollutants
(B) Non- biodegradable pollutants
(C) Biological purifiers
(D) Eutrophication

16. National animal of India is

(A) Lion (B) Fox
(C) Pocupine (D) Tiger

17. State bird of Kerala is

(A) Hornbill (B) Hornet
(C) Crow (D) Racquet tailed drango

18. Gir Lion Project was started at

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

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19. Headquarters of IUCN is at

(A) America (B) Australia
(C) Russia (D) Switzerland

20. Environent Protection Act was passed in the year

(A) 1972 (B) 1974
(C) 1981 (D) 1986

21. Anti-bodies are produced by

(A) ‘T’ lymphocytes (B) ‘B’ lymphocytes
(C) Neutrophils (D) Macrophages

22. Purity and activity of the antibodies are tested by

(A) Monoclonal antibodies (B) Antibiotics
(C) Enzymes (D) Ethonol

23. In India ethanol is produced from

(A) Sugar beet (B) Sweet potato
(C) Molasses (D) Tapioca

24. Bio-catalysts are

(A) Vaccines (B) Antibiotics
(C) Enzymes (D) Hormones

25. The single specimen designated as type of a new species is known as

(A) Holotype (B) Paratype
(C) Allotype (D) Syntype

26. Binomial system of classification was established by

(A) Darwin (B) Lamarck
(C) Aristotle (D) Linnaeus

27. Wings of birds and insects are

(A) Homologous organs (B) Analogous organs
(C) Hind limb modifications (D) Fore limb modifications

28. Prehensile tail in monkeys and chameleon is used for

(A) balancing on trees (B) encircling tree branches
(C) to help young ones to follow (D) to hop on to tree branches

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29. Glomerulus of vertebrates is an organ of

(A) Sweating (B) Excretion
(C) Respiration (D) Reproduction

30. Veins carrying oxygenated blood are

(A) Pulmonary veins (B) Caudal veins
(C) Caval veins (D) Aorta

31. Bioluminescence is caused by the oxidation of

(A) Luciferin (B) Luciferase
(C) Oxytocin (D) Pectin

32. The salinity of standard sea water is

(A) 30‰ (B) 35‰
(C) 40‰ (D) 45‰

33. Notochord is present in all chordates during

(A) Adult stage (B) Reproductive stage
(C) Embryonic stage (D) None of the above

34. Elphidium belongs to

(A) Rhizopoda (B) Ciliata
(C) Dinoflagellata (D) Radiolaria

35. Malarial parasite belongs to the order

(A) Haemosporidia (B) Sarcodina
(C) Metacercaria (D) Heleozoa

36. Process of ingestion in amoeba is

(A) Autophagus (B) Circumvallation
(C) Ciliary action (D) Encystation

37. Endo-erythrocytic cycle in Plasmodium vivax occurs in

(A) Mosquitos (B) Bed bugs
(C) Humans (D) Armadillos

38. Following is a shelled protozoa

(A) Entamoeba (B) Arcella
(C) Arca (D) Glochidium

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39. Monocyctis is a parasite in

(A) Scorpion (B) Spider
(C) Earth worms (D) Centipedes

40. Among protozoa the only class that contains two nuclei in all the species is

(A) Class Rhizopoda (B) Class Mastigophora
(C) Class Ciliata (D) Class Sporozoa

41. Dicyemid mesozoans are parasitic in the reproductive system of

(A) Arthropods (B) Cephalopods
(C) Isopoda (D) Amphipoda

42. Amphiblastula is the larva of

(A) Amphioxus (B) Obelia
(C) Sponges (D) Amphineura

43. Euplectella is commonly known as

(A) Venus flower basket (B) Deadman’s fingers
(C) Boring sponge (D) Freshwater sponge

44. Sponges are charaterised by

(A) Water vascular system (B) Canal system
(C) Perihaemal system (D) Haemocoelic system

45. Coelenterates are

(A) Coelomatic (B) Acoelomatic
(C) Triploblastic (D) None of the above

46. Polymorphism in coelenterates is highly developed in

(A) Corals (B) Halistemma
(C) Obelia (D) Jelly fish

47. The process of strobilisation occurs in

(A) Anthozoa (B) Hydrozoa
(C) Scyphozoa (D) None of the above

48. The largest Barrier Reef of the world is in

(A) India (B) New Zealand
(C) Australia (D) West Indies

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49. Ephyra is the larva of

(A) Aurelia (B) Obelia
(C) Cassiopia (D) Hydra

50. The characteristic feature of Coelenterates is the presence of

(A) Radial symmetry (B) Bilateral symmetry
(C) Coelenteron (D) Archenteron

51. Beroe belongs to

(A) Ctenophora (B) Scyphozoa
(C) Hydrozoa (D) Anthozoa

52. Body space is filled with parenchyma in

(A) Nemetods (B) Platyhelmithes
(C) Mollusca (D) Coelenterata

53. Pig is an intermediate host of the parasite

(A) Faciola hepatica (B) Taenia solium
(C) Schistosoma haematobium (D) Ascaris lumbricoides

54. Tape worms respire

(A) with Ctenidia (B) with Pulmanary chamber
(C) Anaerobically (D) Aerobically

55. Schistosomiasis is caused by

(A) Liver fluke (B) Tape worm
(C) Blood fluke (D) None of the above

56. Wucheraria brancrofti causes

(A) Malaria (B) Typhoid
(C) Elephantiasis (D) Paralysis

57. The intermediate host causing filarial infection is

(A) Anapheles mosquito (B) Culex mosquito
(C) Parasitic mite (D) Cyclops

58. True segmentation is found in

(A) Centipedes (B) Tape worms
(C) Earth worms (D) Prawns

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59. One of the following is an Archiannelid

(A) Neries (B) Leech
(C) Polygordius (D) Spirorbis

60. In earth worms, Typhlosole is

(A) a locomotary organ (B) reproductive organ
(C) inner folding of the intestine (D) part of digestive system

61. Centepedes belong to

(A) Scolopendra (B) Chilopoda
(C) Decapoda (D) Octopoda

62. “Cypris larva” is the larva of

(A) Ostrcoda (B) Cladocera
(C) Cirripedia (D) Palaemon

63. Parasitic castration in crabs is caused by

(A) Sacculina (B) Cyclops
(C) Balanus (D) Phyllosoma

64. Antennae in insects serve as

(A) Feelers (B) Photoreceptors
(C) Tango receptors (D) Copulatoy structures

65. Proboscis in butterflies is the modification of

(A) First maxilla (B) Second maxilla
(C) Antenna (D) Mandible

66. The common name of Apterygota insect found among stored books is

(A) Gold fish (B) Silver fish
(C) Damsel flies (D) Ear wig

67. Absence of metamorphosis during development occurs in

(A) Ametabolous insects (B) Holometabolous insects
(C) Hemimetabolous insects (D) Parthanogenetic insects

68. Order Odonata comprises of

(A) Cockroaches (B) Butterflies
(C) Dragon flies (D) Grass hoppers

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69. Haemocoel is characteristic of

(A) Arthropoda (B) Echinodermeta
(C) Nemethelminthes (D) Platyhelminthes

70. Limulus is a

(A) Living legend (B) Living fossil
(C) Scorpion (D) Crustacean

71. Book lungs are respiratory organs of

(A) Daphnia (B) Scorpions
(C) Cockroaches (D) Peripatus

72. Crystaline style is present in

(A) Pila (B) Freshwater mussel
(C) Lingula (D) Limulus

73. Nautilus belongs to

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

74. The marine mollusk Onchidium is a

(A) Pulmanate (B) Prosobranchia
(C) Opisthobranchia (D) Nudibranchia

75. Scaphopoda is typically represented by

(A) Octopus (B) Dentalium
(C) Chiton (D) Pila

76. Eviceration takes place in

(A) Star fish (B) Sea-lily
(C) Sea cucumber (D) Sea-urchin

77. Beche-de-mer is a product obtained from

(A) Sardines (B) Mackerel
(C) Sea cucumber (D) Crabs

78. Dipleurula is the larva of

(A) Echinoidea (B) Astroidea
(C) Holothuroidea (D) None of the above

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79. Tornaria is the larva of

(A) Phoronis (B) Enterpneusta
(C) Ascidians (D) Amphioxis

80. Pogonophora do not have a

(A) Circulatory system (B) Digestive system
(C) Urinary tracts (D) Reproductive tracts

81. Peripatus belongs to

(A) Trilobita (B) Ostracoda
(C) Onychophora (D) Brachiopoda

82. Buccal diverticulam acts as notochord in

(A) Amphioxus (B) Doliolids
(C) Enteropneust worms (D) Tadpole larva

83. Endostyle of tunicates is part of

(A) Alimentary system (B) Respiratory system
(C) Excretory system (D) Nervous system

84. Thaliacea are

(A) Pelagic tunicates (B) Sessile tunicates
(C) Fish larvae (D) Planktonic annelids

85. Tadpole larva is the larva of

(A) Frog (B) Toad
(C) Ascidian (D) Amphioxus

86. In land vertebrates, gill skeleton is reduced and modified as

(A) Hyoid apparatus (B) Larynx
(C) Pharynx (D) mandible

87. Coelacanth is a

(A) Scorpion fish (B) Planktonic fish larvae
(C) Living fossil (D) Cephalochordate

88. Whale shark, Rhynodon typus is a

(A) Carnivore (B) Herbivore
(C) Omnivore (D) Plankton feeder

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89. Lateral line in fish function as

(A) Respiratory organ (B) Sense organ
(C) Digestive organ (D) Excretory organ

90. Clown fish are

(A) deep water fish (B) associated with sea anemones
(C) extinct fish (D) associated with sharks

91. Skeleton in Holocephalii is

(A) Absent (B) Bony
(C) Cartilaginous (D) Fleshy

92. This clupeid fish forms a major fishery along Kerala coast

(A) Sardinella fimbriata (B) Sardinella sirm
(C) Sardinella longiceps (D) Coilia dussumeri

93. Tadpoles of frog have

(A) External gills (B) Internal gills
(C) Lungs (D) Air bladder

94. Barkudia insularis is a

(A) Limbless lizard (B) Limbless amphibian
(C) Finless fish (D) Sea snake

95. Dinosaurs existed during the period from

(A) Precambrian to Ordovician (B) Silurian to Carboniferous
(C) Triassic to Cretaceous (D) Miocene to Pliocene

96. Typhlops braminus is a

(A) Sea snake (B) Blind snake
(C) Venomous snake (D) Limbless lizard

97. The following is a living fossil

(A) Sea snake (B) Hawkbill turtle
(C) Sphenodon (D) Crocodile

98. Fangs of poisonous snakes are modified
(A) Maxillary teeth (B) Mandibular teeth
(C) Canines (D) Pre-molars

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99. Ostrich is a/an

(A) Antarctic bird (B) Flightless bird
(C) Arctic bird (D) Bird of paradise

100. Skeleton in birds is

(A) Pneumatic (B) Heavy
(C) Short (D) Long

101. Feathers of birds are derivatives of

(A) Ectoderm (B) Endoderm
(C) Mesoderm (D) Coelomic

102. Prototheria are

(A) Egg laying sea birds (B) Egg laying reptiles
(C) Egg laying amphibian (D) Egg laying mammals

103. Kangaroo is a

(A) Rodent (B) Marsupial
(C) Edentate mammal (D) Ungulate

104. Sea cow (Dugong) belongs to order

(A) Cetacea (B) Sirenia
(C) Proboscidae (D) Ungulate

105. Intestinal caecum in rabbit aids in

(A) Digestion of food (B) Assimilation
(C) Digestion of cellulose (D) Vestigial

106. Canine teeth are characteristic of

(A) Rodentia (B) Logomorpha
(C) Ungulata (D) Carnivora

107. Eyes of mammals differ from those of birds in not having

(A) Pecten (B) Lens
(C) Retina (D) Iris

108. Amber grease is obtained from

(A) Dugong (B) Dolphin
(C) Killer whale (D) Sperm whale

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109. Haemocoel contains

(A) Haemoglobin (B) Plasma
(C) Lymph (D) None of the above

110. Dissolving unwanted and decaying body cell is the function of

(A) Mitochondria (B) Chromosomes
(C) Ribosomes (D) Lysosomes

111. Power house of a cell is

(A) Ribosomes (B) Lysosomes
(C) Centriole (D) Mitochondria

112. Animal cell differs from plant cell mainly due to the absence of

(A) cell wall (B) cytoplasm
(C) nucleus (D) nucleolus

113. Meiotic cell division occurs in

(A) Liver (B) Kidney
(C) Gonads (D) Brain

114. A core of nucleic acid surrounded by a protein shell occurs in

(A) Nucleolus (B) Bacteria
(C) Nucleus (D) Virus

115. Sex-linked inheritance was first suggested by

(A) Morgan (B) Mendal
(C) Darwin (D) Wallace

116. XO- type of eggs develop into

(A) Sterile female (B) Normal female
(C) Sterile Male (D) Normal male

117. In human eye, the rods and cones are found in the

(A) Cornea (B) Retina
(C) Eye lense (D) Optic nerve

118. Thyroxine consists of

(A) Thymus (B) Magnesium
(C) Iron (D) Iodine

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119. Respiratory pigment containing copper is known as

(A) Haemoglobin (B) Haemocyanin
(C) Copper oxide (D) Copper sulphate

120. “Origin of species” was written by

(A) Wallace (B) Darwin
(C) Collins (D) Bates

121. Parthenogenic progeny is always

(A) Male (B) Female
(C) Hermaphrodite (D) Sterile

122. Embryonic origin of entire nervous system is

(A) Endodermal (B) Mesodermal
(C) Mesentries (D) Ectodermal

123. Androgen is secreted by

(A) Testes (B) Ovaries
(C) Liver (D) Kidney

124. Hormone Insulin is secreted by

(A) Gastric glands (B) Pancreatic glands
(C) Islets of Langerhans (D) Cystic lobes of liver

125. Theory of “Ontogeny recapitulates phylogeny” was proposed by

(A) T.H.Huxley (B) H. Spencer
(C) E. Haeckel (D) F. Galton

126. The part of the sperm that pierces the covering of the ovum is

(A) Tail (B) Middle piece
(C) Head (D) Acrosome

127. The cavity of blastula is known as

(A) Pseudocoel (B) Haemocoel
(C) Archenteron (D) Blastocoel

128. The study of fossils is called

(A) Paleobotany (B) Paleozoology
(C) Paleontology (D) None of the above

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129. Rearing of silkworms is called

(A) Apiculture (B) Sericulture
(C) Articulture (D) Pomiculture

130. Distribution of animals to various geographical regions of the world is called

(A) Zoogeology (B) Zoogeography
(C) Zoology (D) None of the above

131. Man belongs to the taxonomic order

(A) Cetacea (B) Sirenia
(C) Primates (D) Logomorpha

132. In marine protozoans there is no

(A) Contractile vacuole (B) Food vacuole
(C) Both (A) and (B) (D) None of the above

133. Function of Gemmules in sponges is

(A) Sexual reproduction (B) Asexual reproduction
(C) Digestion (D) Excretion

134. “Trilobite larva” belongs to

(A) Spider (B) Crab
(C) Scolopendra (D) Limulus

135. Pila globosa undergoes

(A) Aestivation (B) Hibernation
(C) Torsion (D) None of the above

136. Byssus, the attachment organ, is present in

(A) Sepia (B) Octopus
(C) Aplysia (D) Mytilus

137. Mitochondria are concerned with
(A) Release of energy (B) Systhesis of fat
(C) Secretion of shell (D) Oxygen absorption

138. Self -fertilization is prevented in annelids by

(A) protandry (B) protogyny
(C) the atrophy of testes (D) the atrophy ovaries

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139. Prokaryotic cell does not have

(A) Cell wall
(B) Cell membrane
(C) Nuclear membrane and nucleolus
(D) Nucleoid

140. Chiasmata formation takes place in

(A) Mitosis (B) Meiosis
(C) Interphase (D) None of the above

141. Zygotene is characterized by

(A) Chiasmata formation
(B) Crossing over
(C) Pairing of homologous chromosomes
(D) Tetrad formation

142. Lock and key model was proposed by

(A) Koshland (B) Emil Fishcer
(C) Parlor (D) Arora

143. Mitotic cell division occurred in

(A) Somatic cell (B) Germ cell
(C) Both (A) and (B) (D) None of the above

144. Albinism is an extreme degree of generalized

(A) hyperpigmentation (B) hypopigmentation
(C) failure of pigmentation (D) perioral pigmentation

145. During glomerular filtration the malpighian body acts like a

(A) structural unit (B) biological filter
(C) biological buffer (D) acid-base balancer

146. Night blindness is caused by

(A) Genetic disturbance (B) Excessive drinking
(C) Vitamin A deficiency (D) Excess secretion of adrenals

147. Digestive process in humans is

(A) Extracellular (B) Intercellular
(C) Intracellular (D) Both (B) and (C)

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148. Number of cervical vertebrae in humans is

(A) 7 (B) 12
(C) 5 (D) 10

149. Animal which can tolerate narrow range of salt concentration is called

(A) Eurythermal (B) Stenothermal
(C) Euryhaline (D) Stenohaline

150. Heart in Anura (Amphibia) is

(A) Mono-chambered (B) Di-chambered
(C) Tri-chambered (D) Tetra –chambered

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