OSMOSIS/DIFFUSION

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 diffusion?

Back

The process by which molecules move from an area of high concentration to an area of low concentration.

Front

What is passive transport?

Back

The movement of substances across a cell membrane without the use of energy.

Front

What is a concentration gradient?

Back

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

Front

What does hypertonic mean?

Back

A solution that has a higher concentration of solutes compared to another solution.

Front

What does hypotonic mean?

Back

A solution that has a lower concentration of solutes compared to another solution.

Front

What does isotonic mean?

Back

A solution that has the same concentration of solutes as another solution.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and may shrink.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will gain water and may swell or burst.

Front

What is an example of diffusion in everyday life?

Back

The smell of perfume spreading in a room.