Which Best Describes the Main Role of Adenosine Triphosphate (ATP)

Multiple Choice

Which best describes the main role of adenosine triphosphate (ATP) ?

A) It is an amino acid that is part of polypeptide chains that serve structural functions within cells.
B) It is a nucleotide that makes up the backbone of DNA and RNA molecules, that harbor the genetic code.
C) It is a carbohydrate molecule that can be stored in large quantities in the liver to energize cellular processes.
D) It is a purine derivative created from the breakdown of fuel molecules, that transfers energy for cellular processes.
E) It is a waste product of aerobic metabolism that is excreted from the body by the kidneys.