Mycoplasma is not inhibited by penicillin bacause it does not have

Options

A. Sexual reproduction
B. Cell wall
C. Nucleus
D. Ribosomes.

Answer

**Step-by-Step Solution:**

1. **Understanding Mycoplasma**: Mycoplasma is a type of bacteria known for being the smallest and simplest form of prokaryotes. It is important to note that Mycoplasma lacks certain structures that are commonly found in other bacteria.

2. **Identifying the Structure in Question**: The question asks why Mycoplasma is not inhibited by penicillin. To answer this, we need to consider the mechanism of action of penicillin.

3. **Mechanism of Penicillin**: Penicillin is an antibiotic that works primarily by targeting the cell wall of bacteria. It inhibits the synthesis of peptidoglycan, a crucial component of bacterial cell walls, leading to cell lysis and death.

4. **Absence of Cell Wall in Mycoplasma**: Mycoplasma does not have a cell wall. Instead, it has a cell membrane that is more flexible and lacks the rigid structure that penicillin targets. This absence of a cell wall is the reason why penicillin is ineffective against Mycoplasma.

5. **Conclusion**: Since Mycoplasma lacks a cell wall, it is not inhibited by penicillin. Therefore, the correct answer to the question is that Mycoplasma does not have a cell wall.

**Final Answer**: Mycoplasma is not inhibited by penicillin because it does not have a cell wall.

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