Diffusion and Osmosis

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from an area of high concentration to an area 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 happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.

Front

What is equilibrium in the context of cells?

Back

Equilibrium is the state where the concentration of solutes is equal inside and outside the cell, resulting in no net movement of water.

Front

What does 'high concentration area' mean?

Back

A high concentration area refers to a region where molecules are tightly packed together.

Front

What does 'low concentration area' mean?

Back

A low concentration area refers to a region where molecules are spread out and less densely packed.

Front

What is a selectively permeable membrane?

Back

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

Front

What is the role of water in osmosis?

Back

Water acts as a solvent in osmosis, moving across membranes to balance solute concentrations.

Front

What is a concentration gradient?

Back

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