Number of different kinds of aquaporins found in water channels of cell is –

Options

A. 4
B. 8
C. 11
D. 16

Answer

To solve the question regarding the number of different kinds of aquaporins found in water channels of cell layers, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Aquaporins**:
- Aquaporins are specialized proteins that facilitate the transport of water across cell membranes. They are integral membrane proteins that form channels specifically for water molecules.

2. **Identifying the Options**:
- The options provided are 4, 8, 11, and 16. We need to determine which of these numbers corresponds to the different types of aquaporins found in cells.

3. **Researching Aquaporins**:
- It is known from biological studies that there are multiple types of aquaporins present in various organisms. Each type may have a specific role in water transport and regulation.

4. **Finding the Correct Number**:
- According to the information provided in the video transcript, it is stated that there are 8 different types of aquaporins that form water channels in cells.

5. **Conclusion**:
- Based on the information gathered, the correct answer to the question is that there are **8 different kinds of aquaporins** found in water channels of cell layers.

### Final Answer:
The number of different kinds of aquaporins found in water channels of cell layers is **8**.