Cell wall is absent in

Options

A. Mycoplasma
B. Gametes
C. Animal cells
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Cell Wall**: The cell wall is the outermost layer of certain cells, providing structural support, protection, and rigidity. It is not found in all types of cells.

2. **Analyzing the Options**:
- **Mycoplasma**: Mycoplasma are a genus of bacteria that are unique because they lack a cell wall. This absence gives them a flexible and variable shape, making them pleomorphic. They are also resistant to antibiotics that target cell wall synthesis.
- **Gametes**: Gametes are reproductive cells (sperm and egg cells) that are haploid. They do not have a cell wall; instead, they are surrounded by a plasma membrane.
- **Animal Cells**: Animal cells also do not possess a cell wall. They are surrounded only by a plasma membrane, which is characteristic of animal cells. In contrast, plant cells have a rigid cell wall made of cellulose.

3. **Conclusion**: Since the cell wall is absent in mycoplasma, gametes, and animal cells, the correct answer to the question "Cell wall is absent in" is **all of the above** (Option D).

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