百米赛跑时的直接能源是ATP吗？

对人来说，绝大多数情况的直接能源都是ATP，当然包括百米赛跑

Infact,ATP is converted by glucose in mitochondria.This is a very long and difficult process including meny steps that you don't need to konw all of them.But ATP is very important for every living cells to do works,muscle contract also need ATP as the source of energy.