Assertion : C_4 photosynthetic pathway is more efficient than the C_3 pathway.Reason : Photorespiration is suppressed in C_4 plants. - Biology MCQ Biology | ExamTest.live

mediumMCQBiologyBiology

1 mark

Assertion : C_{4} photosynthetic pathway is more efficient than the C_{3} pathway.Reason : Photorespiration is suppressed in C_{4} plants.

A $(a) Both Assertion & Reason are true and the reason is the correct explanation of the assertion$
B $(b) Both Assertion & Reason are true but the reason is not the correct explanation of the assertion$
C $(c) Assertion is true statement but Reason is false$
D $(d) Both Assertion and Reason are false statements$

Solution & Step-by-step Explanation

The C_{4} pathway is more efficient because it concentrates CO_{2} in bundle sheath cells, effectively suppressing the wasteful process of photorespiration. This allows the Calvin cycle to proceed without competition from oxygen. Both statements are true and the reason correctly explains the efficiency advantage.

Try it yourself before checking the explanation above.

Assertion : C_{4} photosynthetic pathway is more efficient than the C_{3} pathway.Reason : Photorespiration is suppressed in C_{4} plants.

(a) Both Assertion & Reason are true and the reason is the correct explanation of the assertion

(b) Both Assertion & Reason are true but the reason is not the correct explanation of the assertion

(c) Assertion is true statement but Reason is false

(d) Both Assertion and Reason are false statements

Practice with timed mock tests and track your performance across Biology.