For 10 points, name this compound that is sometimes referred to as the "energy currency" of the cell.
As a signaling molecule, this molecule can activate P2 membrane receptors. Paul Boyer showed that the purpose of a certain proton gradient is to remove it from its namesake synthase. During muscle contraction, the heads of the myosin molecule hydrolyze this molecule. In plants, this molecule is synthesized in the (*) thylakoid membrane of the chloroplasts. Two molecules of it are synthesized as the end product of glycolysis. For 10 points, name this compound that is sometimes referred to as the "energy currency" of the cell.
As a signaling molecule, this molecule can activate P2 membrane receptors.
{ATP} [or {adenosine}-{5}-{triphosphate}]