Choose the incorrect statement about mesosomes.

Options

A. Mesosomes are specialized membranous structures which are formed by the extensions of the cell membrane.
B. They have a prominent role in cell wall formation and DNA replication .
C. They are found as chromatophores in the cytoplasm of some prokaryotes , like cyanobacteria .
D. They help in several secretion processes and enzymatic content .

Answer

To solve the question about mesosomes, we need to analyze each statement provided in the options and determine which one is incorrect.

### Step-by-Step Solution:

1. **Understanding Mesosomes**: Mesosomes are specialized structures found in prokaryotic cells, formed by invaginations of the plasma membrane. They are not present in eukaryotic cells.

2. **Analyzing the Statements**:
- **Statement A**: "Mesosomes are specialized membrane structures which are formed by extensions of cell membranes."
- **Analysis**: This statement is correct. Mesosomes are indeed formed by the invagination of the plasma membrane.

- **Statement B**: "They have a prominent role in cell wall formation and DNA replication."
- **Analysis**: This statement is also correct. Mesosomes are involved in various cellular processes, including cell wall formation and DNA replication.

- **Statement C**: "They are found in chromatophores in the cytoplasm of some prokaryotes like cyanobacteria."
- **Analysis**: This statement is incorrect. Chromatophores are pigment-containing structures found in some prokaryotes, but mesosomes are not chromatophores. Mesosomes are not associated with the pigment-containing organelles and do not serve that function.

- **Statement D**: "They help in several secretion processes and enzymatic content."
- **Analysis**: This statement is correct. Mesosomes play a role in various secretion processes and contain enzymes that are involved in cellular respiration.

3. **Conclusion**: Based on the analysis, the incorrect statement about mesosomes is **Statement C**.

### Final Answer:
The incorrect statement about mesosomes is: **They are found in chromatophores in the cytoplasm of some prokaryotes like cyanobacteria.**

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