How is ATP replaced in the cell?

Question

How is ATP replaced in the cell?

Answer 1

essentailly ATP looks like this:

A-P-P-P

when you use it it becomes two separate molecules:

A-P-P and P

when you break down sugars fat or protein, you just do the opposite...add a P to the A-P-P

Answer 2

ATP is regenerated from ADP by cellular respiration and photosynthesis.

Answer 3

glycolysis...

after glycolysis and the krebs cycle, there is an electron transport chain created in the mitochondria--that makes a proton gradiant within the walls of the mitochondria,.. the protons then physically turn an F0 and F1 complex, the force provided from the turning chemically binds ADP with another P to form ATP

the F0 and F1 complex works kind of like a drive shaft and some sort of gear...it's easier to just see it in this video

http://youtube.com/watch?v=zEmULSTirE8

http://youtube.com/watch?v=uOoHKCMAUMc

Answer 4

Happens in mitecondria