MCQs Questions For Plant Physiology For NEET and Medical Exam 2022

NEET Biology is the scoring paper in the medical entrance examination. Here, you will discover the NEET Biology MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Biology Plant Physiology Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.


Q.1. Macromolecule chitin is

(a) phosphorous containing polysaccharide
(b) nitrogen containing polysaccharide
(c) sulphur containing polysaccharide
(d) simple polysaccharide

(b) nitrogen containing polysaccharide


Q.2. This is a wrongly matched pair

(a) Alcohol – Nitrogenase
(b) Detergents – Lipase
(c) Textile – Amylase
(d) Fruit juice – Pectinase

(b) Detergents – Lipase


Q.3. The most abundant protein in the animal world is

(a) Trypsin
(b) Collagen
(c) Haemoglobin
(d) Insulin

(b) Collagen


Q.4. In the rainy season, doors get swelled up due to

(a) Transpiration
(b) Imbibition
(c) Diffusion
(d) Respiration

(b) Imbibition


Q.5. This statement regarding enzyme inhibition is correct

(a) non-competitive inhibitors often bind to the enzyme irreversibly
(b) non-competitive inhibition of an enzyme can be overcome by adding a large amount of substrate
(c) competitive inhibition is observed when substrate and inhibitor compete for the active site on enzyme
(d) competitive inhibition is observed when substrate competes with an enzyme to bind to an inhibitor protein

(c) competitive inhibition is observed when substrate and inhibitor compete for the active site on enzyme


Q.6. In C3 and C4 plants, primary carboxylation takes place with the help of

(a) PEP carboxylse and pyruvate carboxylase
(b) RuBP carboxylase and PEP carboxylase
(c) PEP carboxylase and RuBP carboxylase
(d) RuBP carboxylase and pyruvate carboxylase

(b) RuBP carboxylase and PEP carboxylase


Q.7. Peroxisomes are involved in which type of reactions pertaining to plant photosynthesis?

(a) Calvin Cycle
(b) Glycolytic cycle
(c) Glyoxylate cycle
(d) Bacterial photosynthesis

(c) Glyoxylate cycle


Q.8. The fundamental feature of Kranz Anatomy of C4 plants is

(a) Presence of agranal chloroplasts in bundle sheath cells and granal chloroplasts in mesophyll cells
(b) Presence of granal chloroplasts in bundle sheath cells and agranal chloroplasts in mesophyll cells
(c) Presence of chloroplasts in epidermal and mesophyll cells
(d) Presence of agranal chloroplasts in both mesophyll and bundle sheath cells

(a) Presence of agranal chloroplasts in bundle sheath cells and granal chloroplasts in mesophyll cells


Q.9. The statement which is incorrect with respect to enzyme action is

(a) Addition of a lot of succinates does not reverse the inhibition of succinic dehydrogenase by malonate
(b) the substrate binds with the enzyme as its active site
(c) a non-competitive inhibitor binds the enzyme at a site distinct from that which binds the substrate
(d) malonate is a competitive inhibitor of succinic dehydrogenase

(a) Addition of a lot of succinates does not reverse the inhibition of succinic dehydrogenase by malonate


Q.10. A phosphoglyceride is always composed of

(a) only an unsaturated fatty acid esterified to a glycerol molecule to which a phosphate the group is also attached
(b) only a saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached
(c) an unsaturated or saturated fatty acid esterified to a phosphate molecule to which a glycerol molecule is also attached
(d) an unsaturated or saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attached

(d) an unsaturated or saturated fatty acid esterified to a glycerol molecule to which a phosphate group is also attache

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