Cell Transport Flashcard

Front

What is Active Transport Pump?

Back

A process that moves molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy (ATP).

Front

What is a Hypertonic solution?

Back

A solution that has a higher concentration of solutes compared to another solution, causing water to move out of cells.

Front

What is a Hypotonic solution?

Back

A solution that has a lower concentration of solutes compared to another solution, causing water to move into cells.

Front

What is Isotonic solution?

Back

A solution that has the same concentration of solutes as another solution, resulting in no net movement of water.

Front

What is Tonicity?

Back

The ability of a solution to affect the volume of a cell by altering the water movement across the cell membrane.

Front

What is Diffusion?

Back

The passive movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is Facilitated Diffusion?

Back

A process that allows molecules to cross the membrane with the assistance of special proteins, without the use of energy.

Front

What is Exocytosis?

Back

The process by which a cell expels materials in vesicles that fuse with the cell membrane.

Front

What is Endocytosis?

Back

The process by which a cell takes in materials by engulfing them in a membrane.

Front

What is Osmosis?

Back

The diffusion of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.