Which of the following statements is incorrect regarding Mitochondria ?

Options

A. The matrix possesses a single double - stranded circular DNA molecule .
B. It is the site of anaerobic respiration.
C. The outer membrane is continuous and smooth .
D. Mitochondria multiple by a fission-like division .

Answer

To determine which statement regarding mitochondria is incorrect, we will analyze each of the provided statements one by one.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement 1**: "The matrix possesses a single double-stranded circular DNA molecule."
- **Analysis**: Mitochondria indeed contain their own DNA, which is a single, double-stranded, circular molecule. This statement is correct.

2. **Statement 2**: "It is the site of anaerobic respiration."
- **Analysis**: Mitochondria are primarily known for aerobic respiration, where oxygen is used to produce ATP. Anaerobic respiration occurs in the cytoplasm of the cell, not in mitochondria. Therefore, this statement is incorrect.

3. **Statement 3**: "The outer membrane is continuous and smooth."
- **Analysis**: The outer membrane of mitochondria is indeed smooth and continuous. This statement is correct.

4. **Statement 4**: "Mitochondria multiply by fission-like division."
- **Analysis**: Mitochondria replicate through a process similar to binary fission, which is typical of prokaryotic cells. This statement is also correct.

### Conclusion:
The only incorrect statement regarding mitochondria is **Statement 2**: "It is the site of anaerobic respiration."

### Final Answer:
The incorrect statement regarding mitochondria is **Statement 2**.

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