Aquaporins are
A) transmembrane transport proteins using ATP to transport water across the membrane.
B) membrane transport proteins which transport water and some specific small ions into cells.
C) specific membrane proteins which are hormonally induced only in kidney cells to transport large volumes of water.
D) a family of membrane-spanning proteins that contribute to water permeability of membranes.
E) All of the answers are correct.

Question

Quizplus · Accepted Answer

Aquaporins are a family of membrane-spanning proteins that facilitate the transport of water across cell membranes, contributing to the water permeability of those membranes. They do not use ATP for water transport, are not limited to transporting ions or being hormonally induced only in kidney cells.

Aquaporins Are