Question

Breathing being step 1 of respiration, how is it different from respiration? [3 marks]

Answer 1

Breathing is the step 1 of respiration. The differences between breathing and respriation are as follows:

Sl.No	Breathing	Respiration
1.	It involves intake of oxygen and release of carbon dioxide.	Respiration is more complex and includeds breakdown of food to release energy.
2.	It is a physical process which include exchange of gases.	It is a biochemical process to release energy.
3.	It involves organ that is lungs.	It occurs at the cellular level.

[0.5 mark for each difference]