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Number of different kinds of aquaporins ...

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

A

4

B

8

C

11

D

16

Text Solution

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The correct Answer is:
To determine the number of different kinds of aquaporins found in the water channels of cells, we can follow these steps: ### Step 1: Understand Aquaporins Aquaporins are specialized proteins that facilitate the transport of water across cell membranes. They are integral membrane proteins that form channels allowing water molecules to pass through while preventing the passage of ions and other solutes. ### Step 2: Identify the Options The question provides four options: 4, 8, 11, or 16. We need to evaluate these numbers in the context of aquaporins. ### Step 3: Research Aquaporin Types Aquaporins are classified into different types based on their structure and function. In humans, there are at least 13 different aquaporin proteins identified (AQP0 to AQP12), which suggests that the number of different kinds of aquaporins is more than 8. ### Step 4: Analyze the Options - **4**: Too low, as research indicates more types exist. - **8**: Still on the lower side compared to known types. - **11**: This is a plausible number as it is close to the number of aquaporins identified. - **16**: This exceeds the known types and is likely incorrect. ### Step 5: Conclusion Based on the information gathered, the most accurate answer to the question regarding the number of different kinds of aquaporins found in water channels of cells is **11**. ### Final Answer: **11** ---
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