Osmosis and Diffusion

Front

What is osmosis?

Back

Osmosis is the movement of water from an area of high concentration to an area of low concentration across a semi-permeable membrane.

Front

What does permeable mean?

Back

Permeable means that things can pass through.

Front

What is diffusion?

Back

Diffusion is the constant random movement of particles freely in all directions to occupy the whole space available.

Front

What is active transport?

Back

Active transport is the movement of substances across a membrane against their concentration gradient, requiring energy.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a membrane without the need for energy, following the concentration gradient.

Front

What is the difference between osmosis and diffusion?

Back

Osmosis specifically refers to the movement of water, while diffusion refers to the movement of any particles.

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

What is concentration gradient?

Back

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

Front

What is an example of osmosis?

Back

An example of osmosis is when a plant's roots absorb water from the soil.

Front

What is an example of diffusion?

Back

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