Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is known as

Options

A. TCA-pathway
B. glycolysis
C. HMS-pathway
D. Krebs' cycle

Explanation

**Step-by-Step Solution:**

1. **Understanding the Process**: The question asks about the process of incomplete oxidation of glucose into pyruvic acid, which involves several intermediate steps.

2. **Identifying the Process**: The process that fits this description is glycolysis. Glycolysis is a series of biochemical reactions that breaks down glucose into pyruvic acid.

3. **Characteristics of Glycolysis**:
- Glycolysis consists of 10 steps.
- It occurs in the cytoplasm of the cell.
- It does not require oxygen, making it an anaerobic process.
- It is the first step in both anaerobic and aerobic respiration.

4. **Comparison with Other Processes**:
- The TCA cycle (also known as the Krebs cycle) occurs after glycolysis and involves the complete oxidation of pyruvic acid.
- The HMS pathway (Hexose Monophosphate Shunt) is a different metabolic pathway that does not directly relate to the breakdown of glucose into pyruvic acid.
- The Krebs cycle is not the correct answer as it follows glycolysis.

5. **Conclusion**: The correct answer to the question is glycolysis, as it specifically refers to the incomplete oxidation of glucose into pyruvic acid through several intermediate steps.

**Final Answer**: Glycolysis

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