Which of the following is true of osmosis?

Question: Which of the following is true of osmosis?

1. Osmosis only takes place across the cell membrane of red blood cells.
2. Osmosis is an energy-demanding or “active” process requiring the expenditure of ATP.
3. In osmosis, water moves across a membrane from areas of lower solute concentration to areas of higher solute concentration.
4. In osmosis, solutes move across a membrane from areas of lower water concentration to areas of higher water concentration
5. All of the above

Answer and Explanation

The answer is C) In osmosis, water moves across a membrane from areas of lower solute concentration to areas of higher solute concentration

Osmosis: The moment of solvent molecules from low concentration to high concetrantion through a membrane. It is a passive action. It occurs in all most all of the cells.