Peroxisomes are associated with
I) Catabolism of long chain fatty acids
II) Important role in synthesis of phospholipids
III) Protection of cells from `H_(2)O_(2)`
IV) Photorespiration

Options

A. I and III only
B. III and IV only
C. I, III and IV only
D. I, II,III, IV

Answer

To determine the associations of peroxisomes, we will analyze each statement provided in the question step by step.

### Step 1: Analyze Statement I - Catabolism of long chain fatty acids
Peroxisomes are indeed involved in the catabolism of long-chain fatty acids. They contain enzymes that break down fatty acids into shorter chains, which can then be utilized for energy production.

**Hint:** Consider the role of peroxisomes in fatty acid metabolism.

### Step 2: Analyze Statement II - Important role in synthesis of phospholipids
Peroxisomes also play a significant role in the synthesis of phospholipids. They are involved in the production of certain types of lipids that are essential for cellular membranes.

**Hint:** Think about the importance of lipids in cell structure and function.

### Step 3: Analyze Statement III - Protection of cells from H₂O₂
Peroxisomes contain enzymes that help in the breakdown of hydrogen peroxide (H₂O₂), which is a byproduct of fatty acid oxidation. This function is crucial for protecting cells from oxidative damage.

**Hint:** Recall the toxic nature of hydrogen peroxide and how cells manage it.

### Step 4: Analyze Statement IV - Photorespiration
Peroxisomes are also associated with photorespiration, a process in plants that occurs when oxygen is fixed instead of carbon dioxide. This process involves the conversion of glycolate to glycine, which takes place in peroxisomes.

**Hint:** Consider the role of peroxisomes in plant metabolism and respiration.

### Conclusion
Based on the analysis:
- Statement I is correct.
- Statement II is correct.
- Statement III is correct.
- Statement IV is correct.

Thus, peroxisomes are associated with all four statements.

### Final Answer
The correct option is: **All of the above (I, II, III, IV)**.

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