Question

How does oxygen present in atmosphere reach our body cells for cellular respiration.

Answer 1

Although calming, the goal of this process is to bring oxygen into the body. ... All body cells engage incellular respiration. They use oxygen and glucose, a sugar found in the foods we eat and convert them to ATP (adenosine triphosphate), or cellular energy, and carbon dioxide.

Hope I helps you.

Answer 2

1)we inhale air 2)oxygen goes to bronchial in lungs. 3)exchanging of co²and o² occurs.4)oxygen is taken by hemoglobin in blood .5)then via hemoglobin taken to each and every cell .6)reaching to the cell.7)oxygen react with glucose present in cell and lastly cellular respiration done.