Question

1. what role do aquaporins play in the cell membrane? a. they allow water molecules to pass through the membrane. b. they are involved in the breakdown of atp. c. they pump ions against their concentration gradient. d. they store genetic information.

Explanation:

Aquaporins are membrane - bound proteins that form channels. Their main function is to facilitate the passage of water molecules across the cell membrane. They are specialized for water transport and do not store genetic information, pump ions against concentration gradients, or participate in ATP breakdown.

Answer:

a. They allow water molecules to pass through the membrane.