Osmosis and Diffusion

Front

What is osmosis?

Back

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

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until equilibrium is reached.

Front

What happens to plant cells when salt is poured on them?

Back

Water moves out of the plant cells, causing them to shrink.

Front

What is equilibrium in the context of osmosis and diffusion?

Back

Equilibrium is the state where the concentration of a substance is equal on both sides of a membrane.

Front

What are molecules?

Back

Molecules are groups of two or more atoms bonded together, and they can move and interact in different states of matter.

Front

How do molecules move in diffusion?

Back

Molecules move randomly and spread out from areas of high concentration to areas of low concentration.

Front

What is a selectively permeable membrane?

Back

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

Front

What is the role of water in osmosis?

Back

Water moves to balance solute concentrations on either side of a membrane.

Front

What is active transport?

Back

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

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 type of molecule.