ATP is a good source of energy for a cell because:.a) it is not reusable. b) it provides excess energy for cellular reactions. c) its breakdown is coupled with energy-requiring reactions. d) it takes no energy to make it. e) it is able to be used in only one type of reaction.

bath correct answer is option B

ATP is a good source of energy for cells because it provides excess energy for cellular reaction.

Explanation: ATP (Adenosine Triphosphate) is the product of the first stage of photosynthesis, it converts glucose to pyruvate to be used for cellular reactions.

It plays a vital role in providing energy for the cell, when a cell needs energy,it removes a phosphate from ATP and releases energy, this leaves Adenosine Diphosphate and free phosphate left over.

by drinking easy

very easy

i think it is dna, i'm not totally sure but i think it might be.