Cell Transport

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Front

What does permeable mean?

Back

Permeable means that things can pass through.

Front

What is homeostasis?

Back

Homeostasis is how the body regulates itself for survival, maintaining a stable internal environment.

Front

What is active transport?

Back

Active transport is the movement of molecules against a concentration gradient, requiring energy.

Front

What is exocytosis?

Back

Exocytosis is the process of moving 'big stuff' out of a cell.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane.

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 concentration of a substance between two areas.

Front

What is the role of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, maintaining homeostasis.

Front

What is endocytosis?

Back

Endocytosis is the process of taking 'big stuff' into a cell.