Diffusion and Osmosis

Front

What is diffusion?

Back

Diffusion is the movement of particles from a region of high concentration to a region of low concentration.

Front

What is osmosis?

Back

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

Front

How do particles move in diffusion?

Back

Particles move from a region of high concentration to a region of low concentration.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What is a hypotonic solution?

Back

A hypotonic solution is one where the concentration of solutes is lower outside the cell than inside, leading to water moving into the cell.

Front

What is an isotonic solution?

Back

An isotonic solution has equal concentrations of solutes inside and outside the cell, resulting in no net movement of water.

Front

What regulates what enters and leaves a cell?

Back

The cell membrane regulates what enters and leaves a cell.

Front

What is a semi-permeable membrane?

Back

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

Front

What occurs during osmosis when a cell is placed in a hypotonic solution?

Back

Water moves into the cell, causing it to swell.

Front

What is the effect of a hypertonic solution on red blood cells?

Back

Red blood cells will shrink when placed in a hypertonic solution.