Cell - organelle involved in catabolism of long chain fatty acids and photorespiration is

Options

A. Peroxysomes
B. Glyoxysomes
C. Nucleosomes
D. Chromosomes

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the cell organelle that is involved in two specific processes: the catabolism of long-chain fatty acids and photorespiration.

2. **Identifying the Options**: The options provided are:
- Option 1: Peroxisomes
- Option 2: Glyoxysomes
- Option 3: Nucleosomes
- Option 4: Chromosomes

3. **Analyzing Option 1 - Peroxisomes**:
- Peroxisomes are known to be involved in the beta-oxidation of fatty acids, which is the process of breaking down long-chain fatty acids into shorter chains. This process is a form of catabolism.
- Additionally, peroxisomes play a role in photorespiration, which is a process in plants that occurs when oxygen is consumed and carbon dioxide is released, typically under conditions of high light intensity and low carbon dioxide concentration.

4. **Analyzing Option 2 - Glyoxysomes**:
- Glyoxysomes are specialized peroxisomes found in plants. They are involved in the conversion of fatty acids to acetyl-CoA, which can then be used in the synthesis of carbohydrates. However, they are not involved in photorespiration.

5. **Analyzing Option 3 - Nucleosomes**:
- Nucleosomes are structural units of DNA, consisting of a segment of DNA wound around a core of histone proteins. They are not involved in fatty acid catabolism or photorespiration.

6. **Analyzing Option 4 - Chromosomes**:
- Chromosomes are structures that contain DNA and proteins. They are not involved in the catabolism of fatty acids or photorespiration.

7. **Conclusion**: Based on the analysis, the correct answer is **Option 1: Peroxisomes**, as they are involved in both the catabolism of long-chain fatty acids and photorespiration.

**Final Answer**: The cell organelle involved in the catabolism of long-chain fatty acids and photorespiration is **Peroxisomes**.

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