Select the correct matching in the following pairs :

Options

A. Rough ER - Synthesis of glycogen
B. Rough ER - Oxidation of fatty acids
C. Smooth ER - Oxidation of phospholipids
D. Smooth ER - Synthesis of lipids

Answer

To solve the question of selecting the correct matching in the given pairs, we will analyze each option step by step:

### Step 1: Analyze the first pair
- **Rough Endoplasmic Reticulum (RER)** is matched with **Synthesis of Glycogen**.
- The RER is primarily involved in the synthesis of proteins due to the presence of ribosomes on its surface.
- Glycogen synthesis, known as glycogenesis, occurs mainly in the liver and muscle cells, and is not a function of the RER.
- **Conclusion**: This pair is incorrect.

### Step 2: Analyze the second pair
- **Peroxisomes** are matched with **Oxidation of Fatty Acids**.
- Peroxisomes are organelles that play a crucial role in the oxidation of very long-chain fatty acids and are involved in lipid metabolism.
- **Conclusion**: This pair is correct.

### Step 3: Analyze the third pair
- **Smooth Endoplasmic Reticulum (SER)** is matched with **Oxidation of Phospholipids**.
- The SER is primarily involved in lipid synthesis and metabolism, but oxidation of phospholipids is not its main function.
- **Conclusion**: This pair is incorrect.

### Step 4: Analyze the fourth pair
- **Smooth Endoplasmic Reticulum (SER)** is matched with **Synthesis of Lipids**.
- The SER is indeed responsible for the synthesis of lipids, including phospholipids and cholesterol.
- **Conclusion**: This pair is correct.

### Final Conclusion
After analyzing all the pairs, we find that:
- The correct matching pairs are:
- **Option 2**: Peroxisomes - Oxidation of Fatty Acids
- **Option 4**: Smooth Endoplasmic Reticulum - Synthesis of Lipids

However, since the question asks for the correct matching in the context of the provided options, the best answer is **Option 4**.