Which of the following play role similar to microvilli:

Options

A. Amoebocytes
B. Typhlosole
C. Epidermal cells
D. Chloragogen cells

Answer

**Step-by-Step Solution:**

1. **Understand the Function of Microvilli**: Microvilli are small, finger-like projections found on the surface of certain cells, particularly in the intestines. Their primary function is to increase the surface area for absorption and secretion.

2. **Analyze the Options Provided**:
- **Option 1: Amoebocytes**: These are mobile cells that move using pseudopodia. Their main function is not to increase surface area but to perform various roles such as transporting nutrients. Therefore, this option is incorrect.
- **Option 2: Typhlosol**: This is a structure found in earthworms that is a median fold of the dorsal wall in certain segments. Its primary function is to increase surface area for digestion and absorption in the intestine. This option is correct as it plays a role similar to microvilli.
- **Option 3: Epidermal Cells**: These cells form the outer layer of an organism and primarily serve a protective function. They do not increase surface area for absorption, making this option incorrect.
- **Option 4: Chloragogin Cells**: These cells are involved in excretion and storage of glycogen in annelids. Their function is not related to increasing surface area for absorption, so this option is also incorrect.

3. **Conclusion**: After analyzing all the options, the only structure that plays a role similar to microvilli by increasing surface area for absorption is **Typhlosol**.

**Final Answer**: The correct option is **2. Typhlosol**.

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