Substances can move into and out of cells through the cell membrane. The three main types of movement are diffusion, osmosis and active transport.
What is diffusion?
Which of these three liquids has the highest water potential?
Which process is responsible for gas exchange in the lungs?
What will happen to cut fruit pieces sprinkled with sugar?
What is osmosis?
What happens to red blood cells when they are put into water?
Why do plant cells become flaccid in concentrated sugar solution?
Which process needs carrier proteins in the cell membrane?
Which process happens against a concentration gradient?
What happens to the rate of diffusion as the temperature increases?