Which of the following statements correctly describes 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 movement of water molecules across a selectively permeable membrane from an area of higher concentration of water to lower concentration of water. This happens in response to a higher concentration of solutes on one side of the membrane. Therefore, Option C is the correct statement. Option A is incorrect as osmosis takes place in all living and non-living cells. Option B is incorrect as osmosis is a passive process and does not require energy. Option D is incorrect as solutes do not move across the membrane during osmosis; only water molecules move.

Which of the Following Statements Correctly Describes Osmosis