Answer:
ATP is used to drive endergonic (uphill) reactions. (Ans. A)
Step-by-step explanation:
Endergonic process is also called anabolic process (meaning that energy is stored) in these type of processes energy is supplied by coupling the reaction with ATP (adenosine triphosphate), ATP is hydrolyzed into positive charged ADP, negatively charged organic phosphate & high energy which are used to perform cellular work.