Why do humans release carbon dioxide?

Question

I was alwasy intersesed in the body and how it works so how is carbon dioxide s release from humans and why.

Answer 1

Humans derive energy primarily from a 6-carbon molecule which is a carbohydrate ("sugar") called glucose, but then there are fats and proteins made up of carbon (the chemistry of carbon is called "organic chemistry") that also produce carbon dioxide.

Humans  get this energy by a process called catabolism in which these biomolecules are oxidized (by oxygen we breathe into the lungs), and in the process of catabolism, carbohydrate, fats, and proteins are broken down into a 1-carbon molecule which is carbon dioxide.

Carbon dioxide is a gas that can be dissolved in blood.  When it gets into the capillaries of the lung, the lung is built to move the carbon dioxide from the dissolved-in-blood phase to the gas phase.  Once in gas inside the alveoli of the lung, the lungs breathe it out.

And that is how CO2 (carbon dioxide) is produced by cell metabolism and breathed out.

To learn more, you can take an introductory course in biochemistry.  You will be truly fascinated.

Answer 2

Because human doesnot need carbon dioxide so they release it.

Answer 3

the body considers c02 as a waste so the natural tendency is for it to be expelled through the process of breathing. just like oxygen is a waste product for plants. so it's great that we humans and the plants are just exchanging wastes in order to survive.

Answer 4

It's simple.In our blood,it happens something like fire(i mean that our blood takes the oxygen and releases CO2