Diffusion, Osmosis, and Transport

Front

What is Equilibrium?

Back

A system in which all particles (molecules or matter) become equal in concentration.

Front

What does Selectively Permeable mean?

Back

A membrane that allows only certain substances to pass through.

Front

What is a Semi-permeable membrane?

Back

A membrane that allows some substances to pass while blocking others.

Front

What is Exocytosis?

Back

The process where a membrane folds around large substances so they can leave the cell, requiring ATP.

Front

What is Active Transport?

Back

The movement of substances into or out of a cell against the concentration gradient (from low to high), requiring ATP.

Front

What is Diffusion?

Back

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

Front

What is Osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is Passive Transport?

Back

The movement of substances across a cell membrane without the use of energy.

Front

What is a Cell Membrane?

Back

A barrier that surrounds the cell, controlling what enters and leaves.

Front

What is Concentration Gradient?

Back

The difference in concentration of a substance across a space.