Glyceraldehyde phosphate is oxidised in glycolysis. What is the fate of hydrogen atom and electron liberated. They cause

Options

A. They reduce `NAD^+`
B. They oxidise `NAD^+`
C. They are transferred to Pyruvic acid
D. They are removed by FAD

Answer

### Step-by-Step Text Solution:

1. **Understanding the Context**: The question pertains to the process of glycolysis, specifically focusing on the oxidation of glyceraldehyde phosphate.

2. **Oxidation of Glyceraldehyde Phosphate**: In glycolysis, glyceraldehyde phosphate (G3P) undergoes oxidation. This step involves the removal of hydrogen atoms and electrons from the molecule.

3. **Role of Coenzymes**: The oxidation of glyceraldehyde phosphate is facilitated by the coenzyme nicotinamide adenine dinucleotide (NAD+). During this reaction, NAD+ acts as an electron acceptor.

4. **Fate of Hydrogen and Electrons**: When glyceraldehyde phosphate is oxidized, the hydrogen atoms and electrons that are liberated are transferred to NAD+. This process reduces NAD+ to NADH.

5. **Reduction of NAD+**: The reduction of NAD+ to NADH means that NAD+ gains electrons (and hydrogen), thus it becomes reduced. This is a crucial step as NADH will later be used in cellular respiration to generate ATP.

6. **Conclusion**: Therefore, the fate of the hydrogen atom and electron liberated during the oxidation of glyceraldehyde phosphate in glycolysis is that they reduce NAD+ to NADH.

### Final Answer:
The hydrogen atom and electron liberated during the oxidation of glyceraldehyde phosphate in glycolysis reduce NAD+ to NADH.

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