Which of the followig pick up excess cholestrol form plasma and transports it io the liver for disposal?

Options

A. LDL
B. HDL
C. Both (1) & (2)
D. glycolipids

Answer

To solve the question "Which of the following picks up excess cholesterol from plasma and transports it to the liver for disposal?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components**: The question provides several options: LDL (Low-Density Lipoprotein), HDL (High-Density Lipoprotein), both 1 and 2, and glycolipids. We need to understand the function of each of these components regarding cholesterol transport.

2. **Identify the Function of LDL**: LDL is known for transporting cholesterol from the liver to the tissues. It is often referred to as "bad cholesterol" because high levels can lead to plaque buildup in arteries. Thus, LDL does not pick up excess cholesterol for disposal.

3. **Identify the Function of HDL**: HDL is known as "good cholesterol." Its primary function is to pick up excess cholesterol from peripheral tissues and transport it back to the liver for disposal. This process is known as reverse cholesterol transport (RCT).

4. **Evaluate the Options**:
- **LDL**: Transports cholesterol from the liver to tissues (not correct).
- **HDL**: Transports excess cholesterol from tissues to the liver (correct).
- **Both 1 and 2**: This option cannot be correct since LDL does not perform the function described in the question.
- **Glycolipids**: These are not primarily involved in cholesterol transport.

5. **Conclusion**: Based on the functions of LDL and HDL, the correct answer is HDL, as it is responsible for picking up excess cholesterol from the plasma and transporting it to the liver for disposal.

### Final Answer:
The correct option is **HDL (High-Density Lipoprotein)**.

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