Energy for the cell’s use is stored when
a. adp and p form
b. atp acetic acid is formed
c. glucose is broken into pyruvic acid
d. co2 is released from the reaction

The right answer is A. ADP and P form (to give ATP).

ATP is therefore the immediate free energy donor by far the most important in biological systems. This intermediary role, coupled with the fact that stocks of ATP are not very important, means that this molecule is subject to intense renewal, which requires a permanent production, fast and important.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.