Select the incorrect statement from the following

Options

A. Both chloroplasts and mitochondria contain an inner and an outer membrane
B. Both chloroplasts and mitochondria have an internal compartment the thylakoid space bounded by the thylakoid membrane
C. Both chloroplasts and mitochondria contain DNA
D. the chloroplasts are generally much larger than mitochondria

Answer

To determine the incorrect statement from the provided options regarding chloroplasts and mitochondria, we will analyze each statement step by step.

### Step-by-Step Solution:

1. **Understanding Chloroplasts and Mitochondria**:
- Both chloroplasts and mitochondria are organelles found in eukaryotic cells.
- Chloroplasts are primarily involved in photosynthesis, while mitochondria are known as the powerhouse of the cell, generating ATP.

2. **Analyzing Option 1**:
- Statement: "Both chloroplast and mitochondria contain an inner and outer membrane."
- **Evaluation**: This statement is correct. Both organelles have a double membrane structure.

3. **Analyzing Option 2**:
- Statement: "Both chloroplast and mitochondria have an internal compartment thylakoid space bounded by the thylakoid membrane."
- **Evaluation**: This statement is incorrect for mitochondria. While chloroplasts have thylakoids and thylakoid space, mitochondria do not have thylakoids. Therefore, this statement is false.

4. **Analyzing Option 3**:
- Statement: "Both chloroplast and mitochondria contain DNA."
- **Evaluation**: This statement is correct. Both organelles contain their own circular DNA, which is separate from the nuclear DNA.

5. **Analyzing Option 4**:
- Statement: "Chloroplast is generally much larger than mitochondria."
- **Evaluation**: This statement is also correct. Chloroplasts are typically larger than mitochondria, with chloroplasts measuring about 5-7 micrometers and mitochondria about 4-6 micrometers.

### Conclusion:
The incorrect statement is **Option 2**: "Both chloroplast and mitochondria have an internal compartment thylakoid space bounded by the thylakoid membrane."

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