Osmosis and diffusion

Front

Cellular transport is the __________ of materials through the cell membrane.

Back

movement

Front

Osmosis is the diffusion of __________.

Back

water

Front

The exchange of materials between the cell and its environment takes place at the _______________.

Back

cell membrane

Front

What is the normal shape of a red blood cell?

Back

A

Front

If a cell membrane is permeable to water but not to dissolved materials (salts), what will happen when the cell is placed into a solution?

Back

Water will flow out of the cell.

Front

Define osmosis.

Back

The movement of water molecules from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane.

Front

What is diffusion?

Back

The movement of particles from an area of higher concentration to an area of lower concentration.

Front

What is a semi-permeable membrane?

Back

A membrane that allows certain molecules or ions to pass through it by diffusion and occasionally by facilitated diffusion.

Front

What happens to a cell in a hypertonic solution?

Back

Water moves out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

Water moves into the cell, causing it to swell and potentially burst.