Question

Chemiosmotic theory of ATP synthesis in chloroplast and mitochondria is based on:

• A. Proton gradient
• B. Accumulation of $K^{+}$ions
• C. Membrane potential
• D. Accumulation of $N{a}^{+}$ions

Answer 1

The correct option is A Proton gradient

Chemiosmotic theory of ATP synthesis in chloroplast and mitochondria is based on proton gradient.
The proton motive force occurs when the cell membrane becomes energized due to electron transport reactions by the electron carriers embedded in it.