How many molecules of ATP does one NADH generate?

Answer

To answer the question "How many molecules of ATP does one NADH generate?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding NADH**: NADH stands for nicotinamide adenine dinucleotide (reduced form). It is an important coenzyme found in all living cells and plays a crucial role in cellular respiration.

2. **Role of NADH in ATP Production**: NADH is involved in the electron transport chain, which is a series of protein complexes located in the inner mitochondrial membrane. When NADH donates electrons to this chain, it helps in the production of ATP.

3. **ATP Yield from NADH**: Each molecule of NADH can generate approximately 2.5 to 3 molecules of ATP during oxidative phosphorylation. However, in many textbooks and studies, it is commonly accepted that one NADH generates 3 ATP molecules.

4. **Example in Cellular Respiration**: For instance, during the Krebs cycle (also known as the citric acid cycle), several NADH molecules are produced. If 2 NADH are generated, they would yield approximately 6 ATP molecules (2 NADH x 3 ATP/NADH = 6 ATP).

5. **Conclusion**: Therefore, the answer to the question is that one NADH generates 3 molecules of ATP.

### Final Answer:
One NADH generates 3 molecules of ATP.

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