3PGAL is oxidised during glycolysis. What happens to the hydroegn atoms and the `e^(-)` that are removed during oxidation?

Options

A. The reduce NA`D^(+)`
B. They oxidise NA`D^(+)`
C. They are transferred to `C_(3)H_(4)O_(3)` (Pyruvic acid)
D. They come out immediately in the form of `H_(2)O`

Answer

To answer the question regarding what happens to the hydrogen atoms and electrons removed during the oxidation of 3-PGAL (3-phosphoglyceraldehyde) in glycolysis, we can break down the process step by step:

### Step-by-Step Solution:

1. **Understanding Oxidation of 3-PGAL**:
- During glycolysis, 3-PGAL is oxidized to form 1,3-bisphosphoglycerate. This oxidation involves the removal of hydrogen atoms and electrons from 3-PGAL.

2. **Formation of NADH**:
- The hydrogen atoms (H⁺) and electrons (e⁻) that are removed during the oxidation of 3-PGAL do not just disappear. Instead, they are transferred to NAD⁺ (Nicotinamide adenine dinucleotide), which acts as an electron carrier in this process.

3. **Reduction of NAD⁺**:
- When NAD⁺ accepts the hydrogen atoms and electrons, it gets reduced to form NADH. This means that NAD⁺ gains electrons and becomes NADH, which is a reduced form of the coenzyme.

4. **Conclusion**:
- Therefore, the hydrogen atoms and electrons removed during the oxidation of 3-PGAL are used to reduce NAD⁺ to NADH. This process is crucial as NADH will later be used in cellular respiration to generate ATP.

### Final Answer:
The hydrogen atoms and electrons removed during the oxidation of 3-PGAL reduce NAD⁺ to NADH.