Diffusion/Osmosis

Front

What is Selective Permeability?

Back

The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.

Front

Where is there a high concentration of water?

Back

In the vase.

Front

What happens to a person's cells when they drink salty water?

Back

Their cells would shrink.

Front

What is diffusion?

Back

The movement of molecules from a high concentration to a low concentration.

Front

Where is there a low concentration of dye?

Back

At the bottom of the cup.

Front

What is osmosis?

Back

The movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is a concentration gradient?

Back

A difference in the concentration of a substance across a space.

Front

What is the role of the cell membrane in diffusion?

Back

The cell membrane controls the movement of substances in and out of the cell.

Front

What happens to cells in a hypotonic solution?

Back

Cells swell and may burst due to water entering the cell.

Front

What happens to cells in a hypertonic solution?

Back

Cells shrink as water leaves the cell.