Diffusion and Osmosis

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What is osmosis?

Back

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

Front

What happens to cells in a hypertonic solution?

Back

Cells will shrink or dehydrate because water moves out of the cell.

Front

What happens to cells in a hypotonic solution?

Back

Cells will expand or swell because water moves into the cell.

Front

What is a selectively permeable membrane?

Back

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

Front

What is the main driving force behind diffusion?

Back

The main driving force behind diffusion is the concentration gradient.

Front

What is equilibrium in the context of diffusion?

Back

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

Front

How does temperature affect the rate of diffusion?

Back

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

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 an isotonic solution?

Back

An isotonic solution has the same concentration of solutes as the inside of a cell, resulting in no net movement of water.