(A) Vitamin A
(B) Vitamin B
(C) Vitamin C
(D) Vitamin D
Answer: (C) Vitamin C
Category: Biology MCQs Class 9
Biology solved multiple choice questions (MCQs) for class 9 with answers.
Which is NOT the accessory pigment for photosynthesis?
(A) Chlorophyll a
(B) Chlorophyll b
(C) Carotenoids
(D) Melanin
Answer: (D) Melanin
The major energy currency of all type of cells is:
(A) DNA
(B) RNA
(C) ATP
(D) Glucose
Answer: (C) ATP
Change in pH can alter the active site by affecting the:
(A) Ionization of amino acid
(B) Shape of substrate
(C) Ionization of cofactor
(D) Ionization of coenzyme
Answer: (A) Ionization of amino acid
When a plant cell is placed in a hypotonic solution, its vacuole increases in size due to:
(A) Plasmolysis
(B) Osmosis
(C) Turgor pressure
(D) Diffusion of solute
Answer: (C) Turgor pressure