Question

What is the main source of potential energy needed for cellular metabolism?

enzymes
ATP
proteins
carbohydrates

Answer 1

ATP. The potential energy is stored in the high-energy phosphate bonds due to the negative charges of each phosphate repulsing each other. Cells break the phosphate-phosphate bonds when they use ATP, so the released energy is used to do kinetic work.

Answer 2

Answer: ATP

Step-by-step explanation:

ATP (Adenosine triphosphate) is a molecules which is considered as a main source of potential energy which is required by the cell for metabolism. The ATP molecule releases energy when phosphodiester bonds are broken in this process ATP is converted into ADP.

The molecules of ATP are produced by oxidative reactions occurring in the cytoplasm and mitochondria in which the process of cellular respiration takes place.