What is the end product of Glycolytic reaction catalysed by the enzyme belonging to I sub class of I class in IUB classification

Options

A. DHAP
B. Pyruvic acid
C. 1 , 3 BPGA
D. 3 - PGA

Answer

To solve the question regarding the end product of glycolytic reaction catalyzed by the enzyme belonging to the first subclass of the first class in the IUB classification, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Glycolysis**: Glycolysis is a metabolic pathway that converts glucose into pyruvate, producing ATP and NADH in the process. It is also known as the Embden-Meyerhof-Parnas (EMP) pathway.

2. **Identify the Enzyme Class**: According to the IUB classification, the first class of enzymes is Oxidoreductases. These enzymes are involved in oxidation-reduction reactions.

3. **Identify the Subclass**: The first subclass of oxidoreductases typically involves enzymes that catalyze reactions where the substrate is oxidized and NAD+ is reduced to NADH.

4. **Trace the Pathway**: In glycolysis, glucose is broken down through several steps:
- Glucose is converted to glucose-6-phosphate.
- It is then converted to fructose-6-phosphate.
- This is followed by the conversion to fructose-1,6-bisphosphate.
- The fructose-1,6-bisphosphate is split into two 3-carbon molecules: dihydroxyacetone phosphate (DHAP) and glyceraldehyde-3-phosphate (G3P).

5. **Final Steps of Glycolysis**: The G3P is further processed through several steps, ultimately leading to the formation of pyruvate. The conversion of phosphoenolpyruvate (PEP) to pyruvate is the final step in glycolysis, which is catalyzed by the enzyme pyruvate kinase, an oxidoreductase.

6. **Conclusion**: The end product of glycolytic reaction, specifically the conversion of phosphoenolpyruvate to pyruvate, is pyruvic acid.

### Final Answer:
The end product of glycolytic reaction catalyzed by the enzyme belonging to the first subclass of the first class in IUB classification is **pyruvic acid**.

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