Which of the following is TRUE of osmosis?
A) Osmosis only takes place in red blood cells.
B) Osmosis is an energy-demanding or "active" process.
C) In osmosis, water moves across a membrane from areas of lower solute concentration to areas of higher solute concentration.
D) In osmosis, solutes move across a membrane from areas of lower water concentration to areas of higher water concentration.

Question

Quizplus · Accepted Answer

Osmosis is the passive movement of water across a selectively permeable membrane from areas of higher water concentration to areas of lower water concentration. This means that water moves from areas of lower solute concentration to areas of higher solute concentration to reach equilibrium. Osmosis occurs in all cells, not just red blood cells, and it is a passive process that does not require energy. Therefore, choice C is the only true statement.

Which of the Following Is TRUE of Osmosis