Question

ATP synthesis proposed by Peter Mitchell is

• A. Phosphorylation
• B. Photophosphorylation
• C. Oxidative phosphorylation
• D. Chemiosmotic synthesis

Answer 1

The correct option is D Chemiosmotic synthesis

Peter Mitchell proposed a theory to explain the production of ATP which is 'Mitchell's chemiosmotic coupling hypothesis'. According to this theory:

1. Inner membrane of mitochondria acts as a transducer of energy and converts energy to chemical energy of ATP along the electrochemical gradient.
2. Inner mitochondrial membrane is impermeable to NADH, ATP, H+, OH-.
3. ATP synthesis and electron transport are coupled with proton gradient.
   

So the answer is 'Chemiosmotic synthesis'.