Which of the following pathway was given by Embden, Meyerhof and Parnas ?

Options

A. Glycolysis
B. Acetyl CoA formation step
C. Krebs cycle
D. Pentose phosphate pathway

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which metabolic pathway was described by the scientists Embden, Meyerhof, and Parnas (often abbreviated as EMP).

2. **Identifying the Pathways**: The options given are:
- Glycolysis
- Acetyl-CoA formation step
- Krebs cycle
- Pentose phosphate pathway

3. **Analyzing Each Option**:
- **Glycolysis**: This is the process that breaks down glucose into pyruvic acid. It is known as the EMP pathway, named after the scientists who elucidated it.
- **Acetyl-CoA formation step**: This is an intermediate step that occurs after glycolysis and before the Krebs cycle, but it is not a pathway described by the EMP.
- **Krebs cycle**: This is a series of reactions that occur after glycolysis and is not directly attributed to the EMP.
- **Pentose phosphate pathway**: This pathway is involved in the metabolism of carbohydrates but is not associated with the EMP.

4. **Conclusion**: The pathway described by Embden, Meyerhof, and Parnas is glycolysis.

5. **Final Answer**: Glycolysis.

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