Which is an integral membrane protein that forms the tetramer and facilitates the diffusion of water and some small, unmodified solutes across cellular membranes?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. Aquaporins.
Aquaporins are integral membrane proteins that form tetramers and facilitate the diffusion of water and some small, unmodified solutes across cellular membranes. Each aquaporin protein is composed of four subunits, each forming a channel that allows water molecules to pass through rapidly and efficiently. Aquaporins are crucial for maintaining water balance in cells, and their function is essential in various physiological processes, such as kidney function, plant water regulation, and maintaining the osmotic balance in different tissues.