Microvilli of epithelial cells

Options

A. Increase surface area
B. Protect the cells
C. Engulf the foreign matter
D. Give movements to the cells .

Answer

**Step-by-Step Solution:**

1. **Understanding Microvilli**: Microvilli are tiny, finger-like projections found on the luminal surface of epithelial cells. They are particularly abundant in cells specialized for absorption.

2. **Function of Microvilli**: The primary function of microvilli is to increase the surface area of the epithelial cells. This increased surface area allows for more efficient absorption of nutrients and other substances.

3. **Context of Epithelial Cells**: Epithelial cells that have microvilli are often found in organs such as the intestines, where absorption of nutrients is critical. The presence of microvilli enhances the cell's ability to take in these substances.

4. **Analyzing the Options**: The question provides four options regarding the function of microvilli:
- Increased surface area
- Protect the cells
- Engulf foreign matter
- Give movements to the cells

5. **Selecting the Correct Option**: Based on the understanding of microvilli, the correct answer is "increased surface area." This aligns with the function of microvilli in enhancing absorption in epithelial cells.

6. **Conclusion**: Therefore, the correct answer to the question regarding the function of microvilli in epithelial cells is that they increase the surface area.

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