Biology ATP is a an important molecule for its major function___________? Options:A. As an energy currency of the cellB. As a coenzymeC. Both a and bD. None of theseView AnswerA. As an energy currency of the cell Continue Reading Previous: _________________ cells of phloem are directly involved in transport of organic solutes?Next: Exposure to low temperature stimulates plants to flower. This is called___________?