Diffusion/Osmosis

Front

What does permeable mean?

Back

Things can pass through.

Front

What is the definition of Selective Permeability?

Back

The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.

Front

Sometimes, energy is required for ____ molecules to go in or out of the cell because they cannot fit into the membrane.

Back

Big.

Front

What is diffusion?

Back

When molecules move from a high concentration to a low concentration.

Front

What is the diffusion of water through a semi-permeable membrane called?

Back

Osmosis.

Front

What is osmosis?

Back

The movement of water molecules through a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is a semi-permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion refers to the movement of any molecules from high to low concentration, while osmosis specifically refers to the movement of water.

Front

What is concentration gradient?

Back

The difference in concentration of a substance between two areas.

Front

What is facilitated diffusion?

Back

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