Why do we need only oxygen to survive?

Why do we need only oxygen to survive?

Image credit: pixabay.com

  With presence of many other gases in the air like nitrogen, argon, etc., why do we need only oxygen to survive??? Let's see... 

  Our whole body functions on the energy that we have. And where does this energy come from? From a process called cellular respiration. In this process, glucose is oxidized in presence of oxygen to give out energy. So if there is no oxygen, we would slowly be unable to function. So that one reason why we need oxygen.

  Besides this, inside our body there are cellular processes going on continuously. They produce heat and keep our body warm. These cellular processes need oxygen. So now, without oxygen, you won't be able to keep your body temperature constant. 

  Moreover, the oxygen we breathe bonds with hemoglobin. Other gases dont bond with hemoglobin. Yes, Carbon dioxide does, but the bond of CO2 and hemoglobin can kill us. 

  So oxygen is important...

Posts before October 2021 have been marked as "Old Posts". Less likely, but they might have out dated or incorrect information, ugly looking bits of code, no labels, etc. Don't get me wrong, many of these posts are top-notch and interesting too.

I thought it would be better not to delete or revamp these posts, even if they suck. The bitter truth is that old works always suck, but I take that as a positive tool to convey that I am growing. Besides there's no better way to showcase my journey without these old, messy, poorly written posts!

Old Post