Cell Transport

Front

Selectively permeable

Back

A property of cell membranes that allows some substances to pass through while blocking others.

Front

Engulfing

Back

The process by which a cell surrounds a particle and uses energy to bring it inside.

Front

Transport proteins

Back

Proteins that help move materials across a cell membrane, often using energy to move substances from low to high concentration.

Front

Active transport

Back

The movement of substances across a cell membrane that requires energy, usually against a concentration gradient.

Front

Osmosis

Back

The diffusion of water across a selectively permeable membrane.

Front

Concentration gradient

Back

A difference in the concentration of a substance across a space or membrane.

Front

Diffusion

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

Front

Hypotonic solution

Back

A solution with a lower concentration of solutes compared to the inside of a cell, causing water to enter the cell.

Front

Hypertonic solution

Back

A solution with a higher concentration of solutes compared to the inside of a cell, causing water to leave the cell.

Front

Isotonic solution

Back

A solution with the same concentration of solutes as the inside of a cell, resulting in no net movement of water.