Diffusion and Osmosis

Front

What is a hypotonic solution?

Back

A solution in which the concentration of dissolved substances is lower than the concentration inside a cell.

Front

What happens to water molecules in a hypotonic solution?

Back

Water molecules move into the cell.

Front

What is diffusion?

Back

A type of passive transport that involves the movement of substances from a high concentration area to a low concentration area.

Front

Does osmosis require energy?

Back

No, osmosis is a passive process that does not require energy.

Front

What is a solvent?

Back

The substance that does the dissolving and is present in greater quantity in a solution.

Front

What is a hypertonic solution?

Back

A solution in which the concentration of dissolved substances is higher than the concentration inside a cell.

Front

What happens to a cell in a hypertonic solution?

Back

Water molecules move out of the cell, causing it to shrink.

Front

What is an isotonic solution?

Back

A solution in which the concentration of dissolved substances is equal to the concentration inside a cell.

Front

What is the concentration gradient?

Back

The difference in concentration of a substance across a space.

Front

What is passive transport?

Back

The movement of substances across a cell membrane without the use of energy.