51. Identify the substances having glycosidic bond and peptide bond, respectively in their structure
(1) Glycerol, trypsin
(2) Cellulose, lecithin
(3) Inulin, insulin
(4) Chitin, cholesterol
52
.If the head of cockroach is removed, it may live for few days because
(1) the cockroach does not have nervous system.
(2)
the head holds a small proportion of a nervous system while the rest is
situated along the ventral part of its body.
(3) the head holds a 1/3rd of a nervous system
while the rest is situated along the dorsal part of its body.
(4) the supra-oesophageal ganglia of the cockroach
are situated in ventral part of abdomen.
53.
Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external inter-costal muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases
(1) (c) and (d)
(2) (a),
(b) and (d)
(3) only (d)
(4)
(a) and (b)
54.
The number of substrate level phosphorylations in one turn of citric acid cycle
is
(1) One
(2)
Two
(3) Three
(4) Zero
55. From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask
(1) CH3, H2, NH4 and water vapor at 800°C
(2) CH4, H2, NH3 and water vapor at 600°C
(3) CH3, H2, NH3 and water vapor at 600°C
(4)
CH4, H2, NH3 and water vapor at 800°C
56.
Embryological support for evolution was disapproved
by
(1) Alfred Wallace
(2) Charles Darwin
(3) Oparin
(4)
Karl Ernst von Baer
57. The roots that originate from the base of the stem are
(1) Primary roots
(2) Prop roots
(3) Lateral roots
(4)
Fibrous roots
58. Which of the following hormone levels will cause release of ovum (ovulation) from the graffian follicle?
(1) High concentration of Progesterone
(2) Low concentration of LH
(3) Low concentration of FSH
(4)
High concentration of Estrogen
59. Goblet cells of alimentary canal are modified from
(1)
Columnar epithelial cells
(2) Chondrocytes
(3) Compound epithelial cells
(4) Squamous epithelial cells
60.
Snow-blindness in Antarctic region is due to
(1) Inflammation of cornea due to high dose of UV-B radiation
(2) High reflection of light from snow
(3) Damage to retina caused by infra-red rays
(4) Freezing of fluids in the eye by low temperature
Answers:
51. (3) Inulin, insulin
52. (2) the head holds a small proportion of a nervous system while the rest is situated along the ventral part of its body.
53. (4) (a) and (b)
54. (1) One
55. (4) CH4, H2, NH3 and water vapor at 800°C
56. (4) Karl Ernst von Baer
57. (4) Fibrous roots
58. (4) High concentration of Estrogen
59. (1) Columnar epithelial cells
60. (1) Inflammation of cornea due to high dose of UV-B radiation