Question

Choose the correct option with respect to A, B, C and D given in the following diagram of coupling process in mitochondria.

• A. A - Inner matrix
• B. B - H${}^{+}$
• C. C - Outer chamber
• D. D - H${}^{+}$

Answer 1

The correct option is D D - H${}^{+}$

In the given diagram depicting ATP synthesis in the mitochondria, A, B and are the outer chamber, the intermembrane space and inner matrix respectively. F${}_1$ headpiece contains the site for the synthesis of ATP from ADP+Pi. F${}_0$ part forms the channel through which protons cross the inner membrane. For each ATP produced, 2H+ pass through F${}_0$ from the intermembrane space to the matrix down the electrochemical proton gradient as shown below.