Mycoplasmas are different from other prokaryotes by

Options

A. Presence of chitin in cell walls
B. Presence of murein in cell walls
C. Presence of proteins in cell walls
D. Absence of cell wall itself

Answer

To solve the question regarding how Mycoplasmas differ from other prokaryotes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Mycoplasmas**:
- Mycoplasmas are a type of bacteria that are unique among prokaryotes. They are known for being the smallest bacteria and are classified as prokaryotic organisms.

2. **Cell Structure of Mycoplasmas**:
- Unlike many other bacteria, Mycoplasmas do not have a cell wall. Instead, they are surrounded only by a cell membrane. This is a significant distinguishing feature.

3. **Comparison with Other Prokaryotes**:
- Most prokaryotes, including many bacteria, possess a cell wall that provides structural support and protection. The composition of these cell walls can vary, with some containing peptidoglycan, while others may have different materials.

4. **Analyzing the Options**:
- The options provided in the question are:
- Presence of chitin in cell walls
- Presence of murine in cell walls
- Presence of proteins in cell walls
- Absence of cell wall itself
- Given that Mycoplasmas lack a cell wall, the correct answer is "absence of cell wall itself."

5. **Conclusion**:
- Therefore, the key difference of Mycoplasmas from other prokaryotes is that they do not possess a cell wall.

### Final Answer:
Mycoplasmas are different from other prokaryotes by the absence of cell wall itself.

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