Diffusion & Osmosis

Front

What is diffusion?

Back

Diffusion is the process where molecules move from an area of high concentration to an area of low concentration.

Front

Where is there a low concentration of dye in a cup?

Back

At the bottom of the cup.

Front

What is osmosis?

Back

Osmosis is 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 equilibrium in the context of cells?

Back

Equilibrium is the state when the concentration of substances is equal inside and outside of a cell.

Front

What is a solvent?

Back

A solvent is a substance that does the dissolving in a solution.

Front

What is a solute?

Back

A solute is a substance that gets dissolved in a solution.

Front

What is concentration gradient?

Back

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

Front

What happens during diffusion?

Back

During diffusion, molecules spread out evenly in a space, moving from areas of high concentration to areas of low concentration.

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain substances to pass through while blocking others.

Front

How does temperature affect diffusion?

Back

Higher temperatures increase the energy of molecules, causing them to move faster and diffuse more quickly.

Tags

NGSS.MS-PS1-4