Adenosine triphosphate is the energy source for work in the cell. It provides energy to the cell and ? A. deactivates compounds for some reactions by transferring a phosphate group.

B. transfers its adenosine group to DNA.

C. activates compounds for some reactions by transferring a phosphate group.

D. activates enzymes by transferring phosphate groups to change the shape of the enzyme.

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.