AIPMT PRELIMS2008Botany-Cellular Respiration
AIPMT PRELIMS 2008 Botany Oxidative Phosphorylation MCQ Question
Type: MCQ-conceptual-Medium-Class 11
The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that Adenosine Tri-Phosphate (ATP) is formed because:
A
A proton gradient forms across the inner membrane
B
There is a change in the permeability of the inner mitochondrial membrane toward Adenosine Di⁻Phosphate (ADP)
C
High energy bonds are formed in mitochondrial proteins
D
ADP is pumped out of the matrix into the intermembrane space
Correct Answer
Option A
Detailed Explanation
The chemiosmotic hypothesis suggests that ATP is generated as protons move back across the mitochondrial membrane through ATP synthase, driven by a proton gradient.
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