Osmosis and Diffusion

Front

What regulates what enters and leaves a cell?

Back

Cell Membrane

Front

What is equilibrium in the context of cell membranes?

Back

Equal amount of substance on either side of the membrane.

Front

What is diffusion?

Back

The movement of particles from an area of high concentration to an area of low concentration.

Front

What happens to an egg placed in pure water for 48 hours?

Back

The egg will gain water and swell.

Front

What happens to an animal cell placed in a hypertonic (salty) solution?

Back

The cell will shrink.

Front

Define osmosis.

Back

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

Front

What is a hypertonic solution?

Back

A solution with a higher concentration of solutes compared to another solution.

Front

What is a hypotonic solution?

Back

A solution with a lower concentration of solutes compared to another solution.

Front

What is an isotonic solution?

Back

A solution with an equal concentration of solutes compared to another solution.

Front

What is the role of the cell membrane?

Back

To protect the cell and regulate the movement of substances in and out.