Cell Transport

Front

What is active transport?

Back

The movement of molecules against a concentration gradient, requiring energy (ATP).

Front

What is passive transport?

Back

The movement of particles from high to low concentration without the use of energy.

Front

What is the main difference between active and passive transport?

Back

Active transport requires energy (ATP) while passive transport does not.

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

The diffusion of water molecules across a selectively permeable membrane.

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a membrane via specific transmembrane integral proteins.

Front

What is endocytosis?

Back

The process by which cells internalize substances from their external environment.

Front

What is exocytosis?

Back

The process by which cells expel materials to the outside environment.

Front

What is a concentration gradient?

Back

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

Front

What role do transport proteins play in cell transport?

Back

Transport proteins assist in the movement of substances across the cell membrane.