Osmosis/Diffusion

Front

What is osmosis?

Back

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

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 a semi-permeable membrane?

Back

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

Front

What does it mean when a cell is in equilibrium?

Back

Equilibrium is when there is an equal amount of substance on either side of the cell membrane.

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 across a cell membrane using energy, usually against a concentration gradient.

Front

What is the main difference between osmosis and diffusion?

Back

The main difference is that osmosis specifically refers to the movement of water, while diffusion refers to the movement of any particles.

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 concentration gradient?

Back

A concentration gradient is the difference in the concentration of a substance across a space.