Osmosis

Front

What is osmosis?

Back

Osmosis is 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 happens to water molecules when the solution outside the cell has the same amount of water as inside the cell?

Back

The amount of water molecules stays the same (equal on inside and outside).

Front

What is the role of a solvent in a solution?

Back

A solvent is a liquid substance capable of dissolving other substances, such as water in sugar water.

Front

What occurs when animal cells are in a balanced solution?

Back

They are balanced and don't explode.

Front

How do water molecules pass through the cell membrane?

Back

Water molecules pass through the cell membrane by diffusion.

Front

What happens to a cell when there are more water molecules outside than inside?

Back

Water will ENTER the cell and the cell swells up.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent, such as sugar in sugar water.

Front

What is a solution?

Back

A solution is a homogeneous mixture of a solute and a solvent.

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 molecules from an area of higher concentration to an area of lower concentration.

Front

What is a selectively permeable membrane?

Back

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