Osmosis and diffusion

Front

What is osmosis?

Back

The movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is diffusion?

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is the cell membrane?

Back

A biological membrane that separates and protects the interior of all cells from the outside environment.

Front

What does permeable mean?

Back

A property of a membrane that allows certain substances to pass through while blocking others.

Front

What is equilibrium in biological terms?

Back

A state where the concentration of a substance is equal throughout a space, resulting in no net movement.

Front

What happens to a cell in a hypertonic solution?

Back

Water will flow out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

Water will flow into the cell, causing it to swell and potentially burst.

Front

What is selective permeability?

Back

The ability of a cell membrane to allow certain substances to pass while restricting others.

Front

What role do proteins play in the cell membrane?

Back

Proteins assist in the transport of materials across the cell membrane and can act as receptors.

Front

What is a solute?

Back

A substance that is dissolved in a solution.