Which are related with photorespiration ?

Options

A. Spherosome
B. Lysosomes
C. Glyoxysomes
D. Peroxisomes

Answer

### Step-by-Step Solution:

1. **Understanding Photorespiration**:
- Photorespiration is a metabolic process that occurs in plants, particularly in C3 plants. It is considered a wasteful process because it leads to the loss of carbon dioxide and energy.

2. **Role of Rubisco**:
- The process of photorespiration is primarily driven by the oxygenase activity of an enzyme called Rubisco (Ribulose-1,5-bisphosphate carboxylase/oxygenase). Instead of fixing carbon dioxide, Rubisco can also bind oxygen, leading to the formation of a two-carbon compound instead of a three-carbon compound.

3. **Organelles Involved in Photorespiration**:
- The main organelles involved in photorespiration are:
- **Chloroplasts**: Where the initial reactions of photosynthesis and photorespiration occur.
- **Peroxisomes**: These organelles are crucial for the conversion of the by-products of photorespiration.
- **Mitochondria**: Involved in the further processing of the products from peroxisomes.

4. **Identifying Related Organelles**:
- Among the organelles mentioned, chloroplasts, peroxisomes, and mitochondria are all involved in photorespiration. However, if the question specifically asks for which organelle is related to photorespiration and only peroxisomes are listed as an option, then peroxisomes would be the correct answer.

5. **Conclusion**:
- The organelle that is specifically related to photorespiration, especially when considering the options provided, is the **peroxisome**.