Cell Transport

Front

What does 'high concentration area' mean?

Back

Tightly packed together.

Front

When the smell of perfume spreads throughout a room, it is an example of ....

Back

Diffusion.

Front

What is diffusion?

Back

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

Front

What is osmosis?

Back

The diffusion of water molecules through a selectively permeable membrane.

Front

What is active transport?

Back

The movement of substances against their concentration gradient, requiring energy.

Front

What is passive transport?

Back

The movement of substances across a cell membrane without the use of energy.

Front

What does isotonic mean?

Back

A solution with the same concentration of solutes as another solution.

Front

Why are diffusion and osmosis important to cells?

Back

They allow cells to take in materials/substances without using energy.

Front

What is a selectively permeable membrane?

Back

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

Front

What happens to a cell in a hypertonic solution?

Back

The cell shrinks as water moves out of it.