Diffusion

Front

What is diffusion?

Back

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

Front

What is osmosis?

Back

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

Front

What does a selectively permeable membrane do?

Back

A selectively permeable membrane allows certain substances to pass through while blocking others.

Front

What is the main substance that undergoes osmosis?

Back

Water.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and shrink.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will gain water and may swell or burst.

Front

What is the concentration gradient?

Back

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

Front

What is equilibrium in the context of diffusion?

Back

Equilibrium is the state where the concentration of a substance is equal throughout a space.

Front

What is the role of temperature in diffusion?

Back

Higher temperatures increase the energy of particles, leading to faster diffusion.

Front

What is facilitated diffusion?

Back

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