Which structure of Pheretima plays the role of liver ?

Options

A. Calciferous cells
B. Chloragogen cells
C. Clitellar cells
D. Gland cells

Answer

To answer the question "Which structure of Pheretima plays the role of liver?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: We need to identify which structure in the organism Pheretima (commonly known as earthworm) functions similarly to the liver in other animals.

2. **Reviewing the Options**: The options provided are:
- A) Calciferous cell
- B) Chloragogon cell
- C) Chlidaler cells
- D) Gland cell

3. **Analyzing Each Option**:
- **Calciferous Cell**: These cells are involved in calcium regulation and do not perform liver-like functions.
- **Chloragogon Cell**: These cells are known to perform functions similar to the liver, such as storing glycogen and neutralizing toxins.
- **Chlidaler Cells**: There is limited information on these cells, and they are not typically associated with liver functions.
- **Gland Cell**: These cells may have various roles but are not specifically known for liver-like functions.

4. **Identifying the Correct Answer**: Based on the analysis, the **Chloragogon cell** (also referred to as Y cells) is recognized for its liver-like functions, including glycogen storage and toxin neutralization.

5. **Conclusion**: Therefore, the correct answer is **Option B: Chloragogon cell**.