I am teaching myself Cell Biology from the internet. Despite my usually good Googling skills, I'm stuck in a loop with this question.
Q: What is the source of ATP?
Q: What is the source of ADP?
At first I thought that ATP synthase actually created ATP from scratch as intimated here:
ATP synthase is an important enzyme that creates the energy storage molecule adenosine triphosphate Wikipedia
I then realise that ATP synthase doesn't create ATP so much as convert ADP.
Can humans synthesise ADP/ATP from scratch. If so, where are these phosphates made and if not what food source provides them and how? Also, where do we get the phosphorus?