active and passive transport

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

Front

What is endocytosis?

Back

Endocytosis is a process when cells absorb external items by engulfing them.

Front

What is exocytosis?

Back

Exocytosis is the process where secretory vesicles eject the items they absorbed.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration.

Front

What type of transport requires energy?

Back

Active transport requires energy.

Front

What type of transport does not require energy?

Back

Passive transport does not require energy.

Front

What organelle is used during endocytosis and exocytosis?

Back

Vesicle.

Front

What is the main difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas.