7.LS1.2 Review

Front

What is osmosis?

Back

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

Front

How does water move during osmosis?

Back

Water moves from an area of high concentration to an area of low concentration.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will gain water and swell.

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is a semi-permeable membrane?

Back

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

Front

What occurs when an egg is placed in pure water?

Back

The egg will gain water and swell.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and shrink.

Front

What is the main 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.

Front

What is a concentration gradient?

Back

A difference in the concentration of a substance across a space.

Front

What is the role of energy in active transport?

Back

Active transport requires energy to move molecules against their concentration gradient.