FaqKids.com

="answers
Q:
Why do we need to breathe air to live?
A:

The simple answer to this question is that we need oxygen. But I have a feeling you are looking for a more complex explanation. So here goes: All the processes in your body require energy. This energy is made inside your cells and is in the form of a molecule called ATP. Just about everything takes ATP. It is used to break food down into nutrients, for growth, for brain function, for damage repair – all the things that keep you alive. Your cells are constantly making and using ATP. The way that it is made is through a long chemical pathway in which electrons get passed around. Oxygen is the last electron acceptor! So without oxygen, your body cannot make any ATP. Amazingly, it also takes ATP to UNDO some things in your body. Your muscles cannot relax unless they use ATP. The lack of it is what causes “rigor mortis,” stiff muscles after death.

related questions

Share This Site

Word of the Day

cline:
cline: a scale of continuous gradation; continuum.

Born on this day

October 21, 2014

1833 - Alfred Nobel
1868 - Sir Ernest Dunlop Swinton
1926 - Leonard Rossiter
1940 - Manfred Mann
1940 - Geoff Boycott
1940 - Natalia Makarova
1942 - Sir John Stevens
1954 - Eric Faulkner
1956 - Carrie Fisher
1962 - David Campese
1966 - Bjork
1971 - Jade Jagger
www.Bridal-Shower-Games.com |Baby Shower Games | www.TwitterBackgrounds.org