Chemistry NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 4 PCB Single Correct MCQ
Published on: August 13, 2026

In the electron transport chain, the electrons pass from one carrier to another via complex-I to IV, they are

A
coupled to cytochrome- oxidase for the production of electron
B
coupled to ATP synthase for the production of ATP
C
coupled to complex-II for the production of
D
coupled to complex-II for the production of ATP

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The correct answer is:
B

When the electrons pass from one carrier to another via complex-I to IV in the electron transport chain, they are coupled to ATP synthase (complex-V) for the production of ATP from ADP and inorganic phosphate. The number of ATP molecules synthesised depends on the nature of the electron donor.

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