When `12H^+` pass through `F_(0-)F_1` particle, how many ATP are produced?

Options

A. 6 ATP
B. 4 ATP
C. 8 ATP
D. 10 ATP

Answer

To solve the question of how many ATP molecules are produced when 12 H+ ions pass through the F0-F1 particle, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the F0-F1 Particle**: The F0-F1 particle is part of ATP synthase, an enzyme complex that synthesizes ATP in the mitochondria during cellular respiration. The F0 portion is embedded in the membrane and allows protons (H+) to flow through, while the F1 portion is responsible for synthesizing ATP.

2. **Chemiosmotic Hypothesis**: According to the chemiosmotic hypothesis, the flow of protons (H+) through the F0-F1 complex drives the production of ATP. Specifically, it is known that for every 2 protons that pass through the F0 portion, 1 ATP molecule is synthesized.

3. **Calculating ATP Production**: In this question, we are given that 12 H+ ions are passing through the F0-F1 particle. To find out how many ATP molecules are produced, we can set up the following calculation:
- Since 2 H+ ions produce 1 ATP, we can determine the number of ATP produced by dividing the total number of H+ ions by 2.
- Calculation:
\[ \text{Number of ATP} = \frac{12 \text{ H}^+}{2 \text{ H}^+/1 \text{ ATP}} = 6 \text{ ATP} \]

4. **Conclusion**: Therefore, when 12 H+ ions pass through the F0-F1 particle, a total of 6 ATP molecules are produced.

### Final Answer:
The correct answer is **A) 6 ATP**.