How many `NADH_(2)` molecules are produced from one molecule of Acetyl CoA in TCA - cycle ?

Explanation

To determine how many NADH2 molecules are produced from one molecule of Acetyl CoA in the TCA cycle (also known as the Krebs cycle), we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the TCA Cycle**: The TCA cycle is a series of enzymatic reactions that occur in the mitochondria, where Acetyl CoA is oxidized to produce energy.

2. **Starting with Acetyl CoA**: When one molecule of Acetyl CoA enters the TCA cycle, it undergoes a series of reactions.

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