Osmosis and Diffusion

Front

What is osmosis?

Back

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

Front

Osmosis is an example of...

Back

...passive transport.

Front

What are hypertonic solutions?

Back

Hypertonic solutions have a higher tonicity than inside the cell.

Front

What are hypotonic solutions?

Back

Hypotonic solutions have a lower tonicity than inside the cell.

Front

What are isotonic solutions?

Back

Isotonic solutions have the same tonicity as inside the cell.

Front

What does diffusion mean?

Back

Diffusion means to spread out.

Front

What is the main difference between osmosis and diffusion?

Back

Osmosis specifically refers to the movement of water, while diffusion refers to the movement of any type of molecules.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and shrink.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will gain water and may swell or burst.

Front

What happens to a cell in an isotonic solution?

Back

The cell will remain the same size as the concentration of solutes is equal inside and outside.