Question

Study the following statements regarding chemiosmotic hypothesis in mitochondria and select the correct ones.
(i) $F_1$ headpiece contains the site for the synthesis of $ATP$ from $ADP+Pi$.
(ii) $F_0$ part forms the channel through which protons cross the inner membrane.
(iii) For each $ATP$ produced, $2H^{+}$ pass through $F_0$ from the intermembrane space to the matrix down the electrochemical proton gradient.

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (i) and (iii)
• D. (i), (ii) and (iii)

Answer 1

Answer: (D)

In the given question, the correct statements are as follows:
(i) F1 headpiece contains the site for the synthesis of ATP from ADP+Pi.
(ii) F0 part forms the channel through which protons cross the inner membrane.
(iii) For each ATP produced, 2H+ pass through F0 from the intermembrane space to the matrix down the electrochemical proton gradient.