Question

How does the cell use ATP

Answer 1

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Answer 2

ATP provides energy to cells, that is why it known as an energy 'currency'. It's mainly used in active transport. It helps in transporting substances through the cell membrane as the cells need the energy, which is in the form of ATP, to counteract the tendency of the particles to move by diffusion to move by diffusion down the gradient which in other words they need energy to move to the other side .

Answer 3

There is potential energy "stored" in the phosphoanhydride bonds of ATP, this is due to repulsion and competing resonance.
Cells couple the hydrolysis of one (or two) of the phosphate groups to drive energetically unfavourable reactions (i.e. \(\Delta G=+ve\)) forward, or to phosphorylate molecules (add phosphate groups) to "activate" molecules so they are able to undergo a given reaction.