Cell Membrane

Passive Transport

_______ _________ is the movement of substances through a cell membrane without using the cell’s energy.

Diffusion

_________ is the movement of substances from an area of higher concentration

Osmosis

_______ is the diffusion of water molecules only through a membrane.

Facilitated diffusion

When molecules pass through a cell membrane using special proteins called transport proteins, this is ___________ _________.

Active Transport

______ ________ is the movement of substances through a cell membrane only by using the cell’s energy.

Endocytosis

___________ is the process during which a cell takes in a substance by surrounding it with a cell membrane.

Exocytosis

__________ is the process during which a cell vesticles release their contents outside the cell.