Compared with a Cell with Few Aquaporins in Its Membrane

Question

Compared with a cell with few aquaporins in its membrane, a cell containing many aquaporins will
A) have a faster rate of osmosis.
B) have a lower water potential.
C) have a higher water potential.
D) have a faster rate of active transport.
E) accumulate water by active transport.

Accepted Answer

Aquaporins are channel proteins that facilitate the movement of water across the cell membrane. Therefore, a cell with many aquaporins in its membrane will have a faster rate of osmosis because water can move in and out of the cell more quickly. The presence of aquaporins does not affect the water potential of the cell or the rate of active transport.