Unit 2 - Lesson 6-7: Facilitated Diffusion + Osmosis

What is facilitated diffusion?

Process by which ions and molecules move across cell membranes through specific protein channels or carriers, from an area of higher concentration to an area of lower concentration without the use of energy.

What is osmosis?

The movement of water molecules through a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration, typically without energy input.

What is hypertonic?

A solution that has a higher concentration of solutes compared to another solution, causing water to move out of a cell.

What is hypotonic?

A solution that has a lower concentration of solutes compared to another solution, resulting in water moving into a cell.

What is isotonic?

A solution that has equal concentrations of solutes compared to another solution, resulting in no net movement of water into or out of a cell.