Answer:
Movement of water across membranes is facilitated by proteins called:
Question 31 options:
a)
aquaporins.
b)
hydropermeases.
c)
transportins.
d)
selectins.
e)
annexins.
Explanation: Aquaporins is the correct answer because Aquaporins (AQP) are integral membrane proteins that serve as channels in the transfer of water, and in some cases, small solutes across the membrane. They are conserved in bacteria, plants, and animals. Structural analyses of the molecules have revealed the presence of a pore in the center of each aquaporin molecule.