In plant cells, peroxisomes are associated with

Options

A. Phototropism
B. Photosynthesis
C. Photorespiration
D. Photoperiodism

Answer

**Step-by-Step Solution:**

1. **Understanding Peroxisomes**: Peroxisomes are small organelles found in both plant and animal cells. They play a crucial role in various metabolic processes, including the breakdown of fatty acids and the detoxification of hydrogen peroxide.

2. **Role in Plant Cells**: In plant cells, peroxisomes are particularly important for the glyoxylate cycle, which is a metabolic pathway that converts fatty acids into carbohydrates. This cycle is essential for plants, especially during seed germination when they rely on stored fats.

3. **Glyoxylate Cycle**: The glyoxylate cycle involves three main organelles: chloroplasts, peroxisomes, and mitochondria. It starts in the chloroplasts, where photosynthesis occurs, and then moves to peroxisomes, where glyoxylate is formed. Finally, it proceeds to mitochondria for further processing.

4. **Connection to Photorespiration**: The glyoxylate cycle is closely associated with photorespiration, a process that occurs when the enzyme Rubisco binds to oxygen instead of carbon dioxide. This can inhibit photosynthesis and lead to the production of harmful byproducts.

5. **Conclusion**: Given the association of peroxisomes with the glyoxylate cycle and their role in mitigating the effects of photorespiration, the correct answer to the question is **photorespiration**.

**Final Answer**: In plant cells, peroxisomes are associated with **photorespiration**.

---