Transport Mechanisms in Cells

Front

Active Transport

Back

the movement of molecules across the cell membrane using ATP energy

Front

Passive Transport

Back

the process whereby materials move along their concentration gradient

Front

Osmosis

Back

the diffusion of water across the cell membrane

Front

Diffusion

Back

when materials are able to move right through the cell membrane from an area of high concentration to low concentration

Front

Facilitated Diffusion

Back

The movement of charged OR large molecules across the membrane with the help of a channel or carrier protein.

Front

Homeostasis

Back

the tendency for a cell to maintain relatively constant internal conditions

Front

Isotonic Solution

Back

Same concentration of solute (dissolved particles) as inside the cell 

Front

Hypotonic solution

Back

Lower solute concentration (dissolved particles) than inside the cell

Front

Hypertonic Solution

Back

Higher solute concentration (dissolved particles) than inside the cell