Causes a cell to shrink. Hypertonic solution - move from an area of high concentration to low concentration

Differnce in the concentation of a substance

Transports amino acids are sugars down the concentration gradient without using the cell's energy.

The movement of substances out of a cell using vesicles.

Causes a cell to swell. Hypotonic solution - move from an area of low concentration to high concentration

Movement of a substance from an area of high concentration to an area of low concentration

Movement of substances across the cell membrane using energy.

A protein that binds to a signal molecule,causing the cell to respond to the signal molecule.

A solution that causes the cell volume to remain the same.

Equal concentration of a substance throughout a space.

A membrane pump that transports three sodium ions out if the cell and two potassium into the cell.

Amplifies the signal of the original signal molcule,the first messanger.

Carries substances across the cell membrane and they releases them.

The diffusion of water from an area of high concentration to an area of low concentration

Supplies the energy to the pump (Active transport).

BONUS !!!

Movement through the cell membrane that does not require energy.

BONUS!!!!

Thw movement of substances into a cell using vesicles.

BONUS !!!!!