Diffusion, Osmosis, and Active Transport

Front

What is diffusion?

Back

The movement of atoms, ions, or molecules from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

The diffusion of water through a semi-permeable membrane.

Front

What is homeostasis?

Back

A state of biological balance.

Front

What are cells?

Back

The basic unit of living things.

Front

What is active transport?

Back

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

Front

What is a semi-permeable membrane?

Back

A barrier that allows certain substances to pass while blocking others.

Front

What is concentration?

Back

The amount of a substance in a given volume.

Front

What does it mean if a solution is hypertonic?

Back

It has a higher concentration of solutes compared to another solution.

Front

What does it mean if a solution is hypotonic?

Back

It has a lower concentration of solutes compared to another solution.

Front

What is turgor pressure?

Back

The pressure of water inside the cell that helps maintain its shape.