DIFFUSION AND OSMOSIS

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until they are evenly distributed.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the role of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, maintaining homeostasis.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy.

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy.

Front

What does isotonic mean?

Back

Isotonic refers to a solution that has the same concentration of solutes as another solution, resulting in no net movement of water.

Front

What happens during diffusion?

Back

During diffusion, particles move from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Front

What is a concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance between two areas.

Front

What is the end result of diffusion?

Back

The end result of diffusion is an equal distribution of molecules throughout a space.

Front

Where does osmosis occur?

Back

Osmosis occurs across a selectively permeable membrane, such as a cell membrane.