Question

Observe the diagrammatic representation of ATP synthesis in oxysome of mitochondria. Identify A, B and C respectively. \includegraphics[width=0.3\linewidth]{3image.png}

• A. \( 3H^{+}, F_0, F_1 \)
• B. \( 2H^{+}, F_1, F_0 \)
• C. \( 3e^{-}, F_1, F_0 \)
• D. \( 1H^{+}, F_0, F_1 \)

Hint:

ATP synthesis in mitochondria involves a proton gradient and the coupling of proton movement through the F0 portion of ATP synthase, leading to ATP production at the F1 portion.

Answer 1

The Correct Option is A

In the given diagram of ATP synthesis, the process occurs in the oxysome of mitochondria. ATP is synthesized via a proton gradient that is built across the mitochondrial membrane. The correct identification of components involved is:
Step 1: The protons (\( H^+ \)) are pumped across the membrane, resulting in a proton gradient.
Step 2: \( F_0 \) and \( F_1 \) refer to the F0F1-ATPase, which is responsible for ATP synthesis in the mitochondria. F0 acts as the proton channel, while F1 is the ATP synthesis site.
Step 3: The \( 3H^+ \) indicates the number of protons required for the synthesis of one molecule of ATP, moving through the F0 channel and driving the ATP synthesis at F1.
Thus, the correct answer is (1) \( 3H^{+}, F_0, F_1 \).