Introduction to diffusion and aerobic respiration

Front

Diffusion

Back

The net movement of particles in a liquid or gas down a concentration gradient, from high concentration to a lower concentration.

Front

What is an example of diffusion that happens in daily life?

Back

Some examples include: the smell of food when something is cooking in the kitchen; the scent of flowers diffuses through the air to attract certain insects; bleeding in water

Front

What is respiration?

Back

A chemical reaction where energy is released through breaking down food.

Front

What is aerobic respiration?

Back

A chemical reaction where oxygen is used to release energy from breaking down food.

Front

What is anaerobic respiration?

Back

A chemical reaction where energy is released from breaking down food without oxygen.

Front

Where does aerobic respiration take place?

Back

In the mitochondria of cells.

Front

What is the purpose of respiration in organisms?

Back

To release energy for vital life process, keeping us alive.

Front

Why do we breathe in oxygen gas from air?

Back

All cells require oxygen to carry out aerobic respiration for energy.

Front

State two waste products from aerobic respiration.

Back

Carbon dioxide and water.

Front

Write the word equation for aerobic respiration.

Back

Glucose + oxygen -----> carbon dioxide + water