Aerobic respiration is composed of two crucial events. Choose the correct option regarding the site of these events.

Options

A. Both of the events take place in the matrix of the mitochondria.
B. Both of the events take place in the inner membrane of the mitochondria.
C. One event takes place in the matrix of the mitrocondria and the other in the cytoplasm of cell.
D. Neither of the events take place in the mitochondria

Answer

To solve the question regarding the site of the two crucial events of aerobic respiration, we need to identify these events and their respective locations.

### Step-by-Step Solution:

1. **Identify the Events of Aerobic Respiration**:
- Aerobic respiration consists of two main events: Glycolysis and the Krebs Cycle (Citric Acid Cycle).

2. **Location of Glycolysis**:
- Glycolysis is the first step of aerobic respiration where glucose is broken down into pyruvate. This process occurs in the **cytoplasm** of the cell.

3. **Location of Krebs Cycle**:
- The Krebs Cycle follows glycolysis and occurs in the **mitochondria**. Specifically, it takes place in the **matrix** of the mitochondria.

4. **Analyze the Options**:
- A. Both events take place in the matrix of the mitochondria. (Incorrect)
- B. Both events take place in the inner membrane of the mitochondria. (Incorrect)
- C. One event takes place in the mitochondria and the other in the cytoplasm of the cell. (Correct)
- D. Neither of the events take place in the mitochondria. (Incorrect)

5. **Conclusion**:
- The correct option is **C**, as glycolysis occurs in the cytoplasm and the Krebs Cycle occurs in the matrix of the mitochondria.

### Final Answer:
**C. One event takes place in the mitochondria and the other in the cytoplasm of the cell.**

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