`INADH_2` form

Options

A. 3ATP
B. 6ATP
C. 12ATP
D. 7ATP

Answer

To determine how many ATP molecules are formed from one NADH2 during cellular respiration, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Role of NADH2**:
- NADH2 (Nicotinamide Adenine Dinucleotide) is a crucial coenzyme involved in cellular respiration. It is produced during glycolysis, the Krebs cycle (TCA cycle), and the link reaction.

2. **Identify the ATP Yield from NADH2**:
- During the process of oxidative phosphorylation in the electron transport chain, each NADH2 molecule contributes to the production of ATP.

3. **ATP Production from NADH2**:
- It is generally accepted that one NADH2 molecule can yield approximately 2.5 to 3 ATP molecules during oxidative phosphorylation. For the purposes of this question, we will consider the higher yield of 3 ATP.

4. **Conclusion**:
- Therefore, from one NADH2, 3 ATP molecules are produced.

### Final Answer:
From one NADH2, **3 ATP** are formed. Thus, the correct option is **Option 1**.

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