Which one is correct about mesosome ?

Options

A. A characteristic of bacteria
B. Infolding of cell membrane
C. May be in the form of vesicles, tubules or lamellae
D. All are correct

Answer

**Step-by-Step Solution:**

1. **Understanding Mesosomes**: Mesosomes are structures found in bacteria. They are formed by the invagination (folding inward) of the plasma membrane.

2. **Analyzing the Options**:
- **Option 1**: States that mesosomes are a characteristic of bacteria. This is correct because mesosomes are indeed found in bacterial cells.
- **Option 2**: Describes mesosomes as infoldings of the cell membrane. This is also correct since mesosomes are formed by the infolding of the plasma membrane.
- **Option 3**: Mentions that mesosomes may be in the form of vesicles, tubules, and lamellae. This is correct as mesosomes can take on various forms, including vesicular and tubular structures.
- **Option 4**: States that all the previous options are correct. Since all the statements about mesosomes are accurate, this option is also correct.

3. **Conclusion**: The correct answer is **Option 4**, as it encompasses all the correct statements about mesosomes.

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