Diffusion & Osmosis

Front

What is diffusion?

Back

Diffusion is the process where molecules move from an area of high concentration to an area of low concentration.

Front

Which material may need a helper or special channel to move in and out of the cell?

Back

Glucose may need a helper or special channel to move in and out of the cell.

Front

What does water love and move toward?

Back

Water loves solute and therefore will move toward it.

Front

What happens during osmosis?

Back

During osmosis, water moves from high water concentration to low water concentration.

Front

What is the process called when oxygen and carbon dioxide move in and out of the cell from areas of high concentration to areas of low concentration?

Back

This process is called diffusion.

Front

What is osmosis?

Back

Osmosis is the movement of water across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is a semipermeable membrane?

Back

A semipermeable membrane is a barrier that allows certain substances to pass through while blocking others.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane using energy, usually against a concentration gradient.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion refers to the movement of all types of molecules, while osmosis specifically refers to the movement of water.

Front

What role do proteins play in cell membranes?

Back

Proteins in cell membranes can act as channels or carriers to help transport substances in and out of the cell.