Glycolysis is operated in cytoplasm because

Options

A. other parts of cells are busy in their own functions
B. cytoplasm is present in all living cells
C. all enzymes of the process and seated in cytoplasm
D. None of these

Answer

**Step-by-Step Text Solution:**

1. **Understanding Glycolysis**: Glycolysis is a metabolic pathway that involves the breakdown of glucose into pyruvate. This process occurs in the cytoplasm of the cell and is crucial for cellular respiration.

2. **End Products of Glycolysis**: During glycolysis, one molecule of glucose is converted into two molecules of pyruvate. Additionally, glycolysis produces two molecules of ATP and two molecules of NADH. The NADH produced can be further used in the electron transport chain to generate more ATP.

3. **Location of Glycolysis**: Glycolysis occurs in the cytoplasm because this is where the necessary enzymes and substrates are available. The cytoplasm is the site for many metabolic processes, and glycolysis is one of the primary pathways for energy production.

4. **Evaluating the Options**:
- **Option 1**: "Other parts of the cell are busy in their own function." This is incorrect because glycolysis does not depend on the functions of other cellular components.
- **Option 2**: "Cytoplasm is present in all living cells." While true, this does not explain why glycolysis specifically occurs there.
- **Option 3**: "All enzymes of the process are sited in the cytoplasm." This is the correct answer because glycolysis requires specific enzymes that are located in the cytoplasm.
- **Option 4**: "None of these." This is incorrect as we have identified a valid reason.

5. **Conclusion**: The correct answer is that glycolysis is operated in the cytoplasm because all the enzymes required for this process are located there.