IF `ADH_2` form

Options

A. 1 ATP
B. 3 ATP
C. 2 ATP
D. 8 ATP

Answer

To solve the question regarding how many ATP molecules are produced from one molecule of FA-DH2, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term FA-DH2**:
- FA-DH2 stands for Flavin Adenine Dinucleotide (FAD) in its reduced form. It is an important coenzyme involved in the metabolic processes of cellular respiration.

2. **Identify the Process of Formation**:
- FA-DH2 is produced during the Citric Acid Cycle (also known as the Krebs Cycle or TCA Cycle). This cycle occurs in the mitochondrial matrix.

3. **ATP Production from FA-DH2**:
- During the electron transport chain (ETC), which occurs in the inner mitochondrial membrane, FA-DH2 donates electrons. Each molecule of FA-DH2 contributes to the production of ATP.

4. **Determine ATP Yield**:
- It is established that one molecule of FA-DH2 can produce approximately 2 ATP molecules during the oxidative phosphorylation process in the ETC.

5. **Select the Correct Option**:
- Based on the information, the correct answer to the question "How many ATP does FA-DH2 form?" is **2 ATP**.

### Final Answer:
- **Option 3: 2 ATP**

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