Osmosis and diffusion

Front

What is osmosis?

Back

The movement of water molecules through a selectively permeable membrane from an area of high water concentration to an area of low water concentration.

Front

What is diffusion?

Back

The process by which particles spread from an area of high concentration to an area of low concentration.

Front

What does equilibrium mean?

Back

Balance; a state where the concentration of a substance is equal throughout a space.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain substances to pass through while blocking others.

Front

What happens to a cell in a hypertonic solution?

Back

Water will flow out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

Water will flow into the cell, causing it to swell and potentially burst.

Front

What is a tropism?

Back

A growth response of a plant toward or away from a stimulus, such as light or gravity.

Front

What is the role of the cell membrane?

Back

To protect the cell and control the movement of substances in and out of the cell.

Front

What is concentration?

Back

The amount of a substance in a given volume of solution.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.