The number of `NADH_(2)` molecules produced in EMP is

Options

A. 1
B. 2
C. 3
D. 4

Answer

To solve the question regarding the number of NADH2 molecules produced in the Embden-Meyerhof-Parnas (EMP) pathway, also known as glycolysis, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the EMP Pathway**: The EMP pathway is the process of glycolysis where glucose is broken down into pyruvic acid. It involves a series of enzymatic reactions.

2. **Identify the Starting Material**: The process begins with one molecule of glucose (C6H12O6).

3. **Conversion Process**: During glycolysis, glucose is converted into two molecules of pyruvic acid (C3H4O3). This conversion involves several steps, including phosphorylation, oxidation, and substrate-level phosphorylation.

4. **NADH Production**: In the glycolytic pathway, NAD+ (nicotinamide adenine dinucleotide) is reduced to NADH during the oxidation of glyceraldehyde-3-phosphate. For each molecule of glucose, two molecules of NADH are produced.

5. **Count the NADH Molecules**: Since one molecule of glucose yields two molecules of pyruvic acid, and during the conversion of each glyceraldehyde-3-phosphate to pyruvate, one NADH is produced, the total number of NADH produced is 2.

6. **Conclusion**: Therefore, the number of NADH2 molecules produced in the EMP pathway is **2**.

### Final Answer:
The number of NADH2 molecules produced in the EMP pathway is **2**.

---