Diffusion & Osmosis Review

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

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

Front

What happens to a cell in a hypertonic solution?

Back

The cell will shrink because water moves out of the cell.

Front

What happens to a cell in a hypotonic solution?

Back

The cell will swell and may burst because water moves into the cell.

Front

What is an isotonic solution?

Back

An isotonic solution has the same concentration of solutes as the cell, resulting in no net movement of water.

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane allows certain molecules to pass through while blocking others.

Front

What is the effect of high salt concentration on cells?

Back

High salt concentration causes water to leave the cell, leading to cell shrinkage.

Front

What is the direction of water movement in osmosis?

Back

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

Front

Why can't ocean fish survive in freshwater?

Back

Freshwater is hypotonic to ocean fish cells, causing water to enter the cells and potentially make them burst.

Front

What is the result of equal water movement in and out of a cell?

Back

The cell maintains its shape and size.