Guard cells differ from other epidermal cells in having

Options

A. Mitochondria
B. Endoplasmic reticulum
C. Chloroplasts
D. Protoplasm

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks how guard cells differ from other epidermal cells.

2. **Identifying the Options**: The options provided are:
- Mitochondria
- Endoplasmic reticulum
- Chloroplast
- Protoplasm

3. **Analyzing Each Option**:
- **Mitochondria**: While mitochondria are present in plant cells, they are not a distinguishing feature of guard cells compared to other epidermal cells.
- **Endoplasmic Reticulum**: This organelle is also present in both guard cells and other epidermal cells and does not serve as a distinguishing factor.
- **Chloroplast**: Guard cells contain chloroplasts, which are responsible for photosynthesis. This is a significant difference since most other epidermal cells do not have chloroplasts.
- **Protoplasm**: Protoplasm is the living content of a cell and is present in all types of cells, including guard cells and epidermal cells.

4. **Conclusion**: The key distinguishing feature of guard cells compared to other epidermal cells is the presence of chloroplasts. Therefore, the correct answer is **Chloroplast**.

5. **Final Answer**: Guard cells differ from other epidermal cells in having **chloroplasts**.

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