Cell Transport Flashcard

Front

What is Active Transport?

Back

Energy-requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration.

Front

What is Equilibrium in a solution?

Back

When the concentration of a solute is the same throughout a solution.

Front

What is a Solution?

Back

A mixture of solute and solvent.

Front

What is Passive Transport?

Back

Movement of molecules across the cell membrane without energy.

Front

What is Homeostasis?

Back

The process by which living organisms regulate their internal environment to maintain stable, constant conditions.

Front

What is Diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy.

Front

What is Osmosis?

Back

The diffusion of water molecules through a selectively permeable membrane.

Front

What does Isotonic mean?

Back

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

Front

What is a Semipermeable Membrane?

Back

A membrane that allows certain molecules or ions to pass through it by diffusion and occasionally by facilitated diffusion.

Front

What is Facilitated Diffusion?

Back

The process of spontaneous passive transport of molecules or ions across a biological membrane via specific transmembrane integral proteins.