Cell Transport

Diffusion

When molecules move from areas of high concentration to areas of low concentration.

Facilitated Diffusion

A form of passive transport that uses transport protein

Passive Transport

1.Particle movement from an area of higher concentration to an area of low concentration 2.The movement of substances through the cell membrane without the use of cellular energy.

Active Transport

1.Particle movement from an area of lower concentration toan area of higher concentration 2. When energy is required to moved material through a cell membrane

Exocytosis

1.Process by which a cell expels wastes from vacuole 2. A vacuolr membrane fuses the cell membrane and the contents are released

Endocytosis

1.Process by which a cell takes in material by forming a vacuole around it 2.The cell membrane forms around substance for example, how the amoeba gets its food.

Energy

Is used during active transport but not passive transport.

Osmosis

The diffusion of water through a cell membrane

Carrier Protein

Transport protein that chages shape when a particle binds with it

Channel Protein

Transport protein that provides a tube-like opening in the plasma membrane through which particles can diffuse

Transport Protein

Use to help substances enter and exit the cell membrane

Equilibrium

When the molecules of one substancesare spread evenly throughout another substance to become balanced