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Question
The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triophosphate (ATP) is formed because _______.
Options:
A .  High energy bonds are formed in mitochondrial proteins
B .  ADP is pumped out of the matrix into the intermembrane space
C .  A proton gradient forms across the inner membrane
D .  There is a change in the permeability of the inner mitochondrial membrane towards adenosine diphosphate (ADP)
Answer: Option C
:
C
As per chemiosmotic hypothesis ATP synthetase becomes active in ATP formation only where there is a protein gradient having a higher concentration of H+ or protons on the inner side as composed to the outer side

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