Which plant shows chloroplast dimorphism

Options

A. Wheat
B. Rice
C. Sugar Beet
D. Sugarcane/`C_(4)` plant.

Answer

**Step-by-Step Solution:**

1. **Understanding Chloroplast Dimorphism**: Chloroplast dimorphism refers to the presence of two different types of chloroplasts in a plant. This phenomenon is typically observed in C4 plants, where chloroplasts in different cell types exhibit distinct structural characteristics.

2. **Identifying C4 Plants**: C4 plants have a unique leaf anatomy known as Kranz anatomy, which includes a special arrangement of bundle sheath cells and mesophyll cells. This adaptation allows them to efficiently fix carbon dioxide in hot and dry environments.

3. **Analyzing the Options**: The question provides several options: wheat, rice, sugar beet, sugarcane, and sifo plant. We need to identify which of these plants exhibits chloroplast dimorphism.

4. **Evaluating Each Option**:
- **Wheat**: A C3 plant, does not show chloroplast dimorphism.
- **Rice**: Also a C3 plant, does not show chloroplast dimorphism.
- **Sugar Beet**: Another C3 plant, does not show chloroplast dimorphism.
- **Sugarcane**: A C4 plant that exhibits chloroplast dimorphism due to the presence of two types of chloroplasts in its bundle sheath cells (starch-storing chloroplasts lacking grana).
- **Sifo Plant**: This term is less commonly known, but in the context of the question, it is likely referring to a specific type of C4 plant that also exhibits chloroplast dimorphism.

5. **Conclusion**: Based on the analysis, the correct answer to the question is **sugarcane**, as it is a C4 plant that demonstrates chloroplast dimorphism.

**Final Answer**: Sugarcane shows chloroplast dimorphism.

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