Diffusion

Front

What is diffusion?

Back

Diffusion is the process by which particles spread from an area of high concentration to an area of low concentration.

Front

When does diffusion stop?

Back

Diffusion stops when the particles are evenly spread out.

Front

True or False: Diffusion occurs only in solids.

Back

False. Diffusion occurs in gases, liquids, and solids.

Front

What effect does an increase in temperature have on diffusion?

Back

An increase in temperature speeds up diffusion.

Front

What is an example of diffusion?

Back

An example of diffusion is the spreading of perfume in a room.

Front

What factors affect the rate of diffusion?

Back

Factors include temperature, concentration gradient, and the size of the particles.

Front

Define concentration gradient.

Back

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

Front

What is osmosis?

Back

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

Front

What is active transport?

Back

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

Front

What is isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is the same inside and outside the cell.