Which product of glycolysis is consumed in alcoholic fermentaion ?

Options

A. `NADH_(2)`
B. ATP
C. `ATP" and "NADH_(2)`
D. `CO_(2)`.

Answer

To determine which product of glycolysis is consumed in alcoholic fermentation, we can break down the process step by step:

### Step-by-Step Solution:

1. **Understanding Glycolysis**:
- Glycolysis is the metabolic pathway that converts glucose into pyruvate. During this process, two molecules of NADH are produced.

2. **Products of Glycolysis**:
- The main products of glycolysis are:
- 2 molecules of pyruvate
- 2 molecules of NADH
- 2 molecules of ATP (although ATP is not consumed in fermentation)

3. **Alcoholic Fermentation**:
- In alcoholic fermentation, pyruvate is converted into ethanol. This process occurs in two main steps:
- First, pyruvate is converted into acetaldehyde, releasing carbon dioxide.
- Then, acetaldehyde is reduced to ethanol.

4. **Role of NADH in Fermentation**:
- The conversion of acetaldehyde to ethanol requires reducing power, which is provided by NADH. During this reaction, NADH is oxidized back to NAD+.

5. **Conclusion**:
- Therefore, the product of glycolysis that is consumed in alcoholic fermentation is **NADH**.

### Final Answer:
The product of glycolysis that is consumed in alcoholic fermentation is **NADH**.

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