The movement of water across a membrane from an area of higher water (lower solute) concentration to an area of lower water (higher solute) concentration is known as
A) filtration.
B) active transport.
C) diffusion.
D) facilitated diffusion.
E) osmosis.

Question

Quizplus · Accepted Answer

This is the definition of osmosis, where water moves down its concentration gradient across a membrane. Filtration involves the movement of particles based on pressure, active transport involves the movement of particles against a gradient with the use of energy, diffusion is the movement of particles down a concentration gradient, and facilitated diffusion is the movement of particles down a gradient with the help of a protein channel.

The Movement of Water Across a Membrane from an Area