Diffusion and Osmosis

Front

What is osmosis?

Back

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

Front

What does passive transport require?

Back

Passive transport requires no energy.

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of high concentration to an area 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

What happens to water in a high concentration area?

Back

Water moves from a high concentration area to a low concentration area through osmosis.

Front

What is the main substance involved in osmosis?

Back

The main substance involved in osmosis is water.

Front

Where does diffusion occur?

Back

Diffusion occurs in gases, liquids, and across membranes.

Front

What is concentration gradient?

Back

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

Front

What is an example of osmosis in plants?

Back

An example of osmosis in plants is the absorption of water by roots from the soil.

Front

How does temperature affect diffusion?

Back

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