Paper : C.S.E. ZOOLOGY SAMPLE QUESTION PAPER FOR PRELIMINARY EXAMINATION

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Two Hours Maximum Marks: 300

62. Hypoprothrombinemia is due to the deficiency of 
(a) Vitamine A (b) Vitamine B complex
(c) Vitamine E (d) Vitamine K

63. Consider the following:
1. Malate. 2. Succinate
3. Fumarate

What is the correct sequence of the above metabolites in citric acid cycle?
(a) 1 - 2 – 3 (b) 2 - 1 - 3
(c) 3 - 2 – 1 (d) 2 - 3 - 1

64. The hormones response are responsible for the "fight-or-flight"
(a) Cortisol and aldosterone
(b) Corticosterone and aldosterone
(c) Aldosterone and nor-adrenalin
(d) Adrenalin and nor-adrenalin

65. Consider the following statements: .
1. Chymotrypsinogen is converted into chymotrypsin by trypsin.
2. Cholecystokinin is secreted by stomach.
3. Pepsin acts on peptide linkage in which tyrosine and phenylalanine are involved.

Which of the statements given above are correct?
(a) I and 2 (b) 2 and 3
(c) I and 3 (d) I, 2 and 3

66. In glycolysis, which' one of the following is the substrate I for the enzyme enolase?

(a) Fructose 1-6 biphosphate
(b) 3-phosphoglyceraldehyde
(c) I, 3-biphosphoglyceric acid
(d) 2-phosphoglyceric acid

67. Consider the following hormones:
1. Thyrotrophin releasing hormone (TRH)
2. Thyroid stimulating hormone (TSH)
3. Thyroxine (T 4)

68. What is the correct sequence of the release of these hormones?
(a) I - 2 - 3 (b) 2 - I - 3
(c) 2 - 3 - I (d) I - 3 - 2

68. How many fused hydrocarbon rings does the steroid nucleus consist of?
(a) Two (b) Three
(c) Four (d) Six

69. Which one of the following statements is correct?

(a) Perilymph is positively charged and endolymph is negatively charged.
(b) Perilymph and endolymph are positively charged.
(c) Perilymph is negatively charged and endolymph is positively charged.
(d) Perilymph and endolymph are negatively charged.

70. Consider the following statements:
The tertiary structure of proteins is stabilized by

1. disulphide linkage
2. hydrogen bonding
3. electrostatic bonds between positively and negatively charged groups

Which 'of the statements give!1 above are correct?
(a) I and 2 (b) 2 and 3
(c) 1 and 3 (d) 1, 2 and 3

71. Consider the following statements:
Pheromones help in

l. communication within species.
2. marking the territory.
3. defence mechanism.

Which of the statements given above are correct?
(a) I and 2 (b) 2 and 3.
(c) l and 3 (d) 1, 2 and 3

72. The axial filament of a mammalian sperm consists of
(a) 9 double peripheral and 2 single central microtubules
(b) 9 single peripheral and 2 double central microtubules
(c) 2 single peripheral and 9 double central microtubules
(d) 2 double peripheral and 9 single central microtubules

73. Which one of the following is not applicable to the retrogressive metamorphosis of Ascidian tadpole?

(a) Reduction of size of the pharynx
(b) Dwindling of notochord
(c) Development of sessile character
(d) Shortening of tail

74. Which one of the following sets is of ectodermal derivative?
(a) Brain, spinal cord, pituitary, thyroid
(b) Brain, spinal cord, liver, pancreas
(c) Brain, spinal cord, pituitary, pineal
(d) Heart, eye, dentine, skeleton

75. Regarding the appearance of the given organs in a tapdole of frog, which one of the following is the correct sequence?

(a) Mouth, external gill, fore limb, hind limb
(b) Mouth, external gill, hind limb, fore limb
(c) External gill, mouth, hind limb, fore limb
(d) External gill, mouth, fore limb, hind limb

76. The chorion, originates from
(a) Ectoderm
(b) Endoderm
(c) Extra-embryonic ectoderm
(d) Somatic mesoderm

77. The third cleavage in the development of frog is
(a) Holoblastic and equatorial
(b) Holoblastic and un equatorial
(c) Vertical and equatorial
(d) Meroblastic and vertical

78. In mammals, the extra-embryonic structure is composed of
(a) Chorioallantois and trophoblast
(b) Amnion and allantois
(c) Yolk
(d) Yolk and amnion

79. In which among the following is bidiscoidal placenta present?
(a) Cat (b) Dog
(c) Human (d) Monkey

80. The placenta in mammals secretes
(a) Progesterone only
(b) Estradiol only
(c) Relaxin and estradiol
(d) Progesterone, estradiol and relaxin

81. Which one of the following studies strongly supports Neo-Darwinism theory?
(a) Moletular genetics (b) Paleontology
(c) Comparative anatomy (d) Functional morphology

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