FaqKids.com

answers to questions kids ask
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
categories

Share This Site

Word of the Day

frivol:
frivol: to behave frivolously; trifle.

Born on this day

April 23, 2014

1564 - William Shakespeare
1775 - J.M. Turner
1926 - J.P. Donleavey
1928 - Shirley Temple Black
1928 - Sir Bill Cotton
1936 - Roy Orbison
1940 - Lee Majors
1941 - Ed Stewart
1955 - Mike Smith
www.Bridal-Shower-Games.com | www.TwitterBackgrounds.org