Question

Why does your body need to breathe in oxygen?

a.Your blood uses the oxygen to help it clot and fight disease.
b.Your lungs store oxygen in the alveoli to help absorb carbon dioxide.
c.Your cells use the oxygen to break down sugar and produce energy.
d.Your heart uses the oxygen to make blood.

Answer 1

c.Your cells use the oxygen to break down sugar and produce energy.

Step-by-step explanation:

Oxygen is a key reactive involved in breaking down glucose molecules during the process of aerobic cellular respiration. As a product of this process, the cells produce Adenosine triphosphate (ATP) molecules, the energy coins of the cell which are used to carry out cellular activities. By breathing the oxygen molecules enter into the lungs (air sacs) and then they are carried out by the blood vessels around the body in the bloodstream, reaching each cell to be used during aerobic cellular respiration.