81. Which amino acid is not optically active?
(A) Glycine (B) Leucine
(C) Isoleucine (D) Valine
Ans. (A)
82. Cell turgidity is caused by
(A) Diffusion (B) Plasmolysis
(C) Endosmosis (D) Exosmosis
Ans. (C)
83. Force for active water absorption is present in
(A) Xylem (B) Aerial Parts
(C) Root (D) Root Hairs
Ans. (C)
84. Critical elements are
(A) N, P and K (B) Mn, B and Mo
(C) N, P and Mg (D) Na, K and Ca
Ans. (A)
85. The substrate for photorespiration is
(A) Phosphoglyceric acid (B) Gycolate
(C) Serine (D) Glycine
Ans. (B)
86. Ferredoxin is a constituent of
(A) PS-I (B) PS-II
(C) Hill reaction (D) None of these
Ans. (A)
87. Which cell does not respire?
(A) RBC (B) Sieve tube cell
(C) Epidermal cell (D) Cork cell
Ans. (D)
88. Respiratory Quotient (RQ) of protein is
(A) 0.7 (B) 0.9
(C) 1.0 (D) 1.2
Ans. (B)
89. The short day plant is
(A) Tomato (B) Sunflower
(C) Cotton (D) Potato
Ans. (C)
90. Richmond-Lang effect is due to
(A) Gibberellins (B) Auxin
(C) Ethylene (D) Kinetin
Ans. (D)
91. Which of the following classes exhibits polymorphism?
(A) Hydrozoa (B) Scyphozoa
(C) Calcaria (D) Polychaeta
Ans. (A)
92. Limbless amphibian is
(A) Salamander (B) Rana
(C) Hyla (D) Ichthyophis
Ans. (D)
93. The outer covering of Cartilage is called
(A) Peritoneum (B) Periosteum
(C) Endosteum (D) Perichondrium
Ans. (D)
94. Earthworms reproduce primarily by
(A) Self-fertilisation (B) Cross-fertilisation
(C) Asexually (D) All of these
Ans. (B)
95. Cud -Chewing animals are called
(A) Ruminants (B) Cannibals
(C) Frugivores (D) Sanguivores
Ans. (A)
96. In ileum, which of the following is absorbed?
(A) Fat (B) Glucose
(C) Bile salts (D) Vitamin K
Ans. (B)
97. Pneumotaxic centre is present in
(A) Pons Varolii (B) Medulla
(C) Cerebellum (D) Cerebrum
Ans. (A)
98. Emphysema is a
(A) Neural disease (B) Renal disease
(C) Cardio-vascular disease (D) None of these
Ans. (D)
99. Carotid labyrinth contains
(A) Olfactoreceptors (B) Baroreceptors
(C) Chemoreceptors (D) Phonoreceptors
Ans. (C)
100. Osmoregulation is the function of
(A) Vasopressin (B) Prolactin
(C) Oxytocin (D) None of these
Ans. (A)
