18 which of the following statements are correct? some enzyme-catalyzed reactions would cease completely if their enzyme is absent. a) hydrolysis of atp to amp can provide about twice as much energy as hydrolysis of atp to adp b) some activated carrier molecules can transfer both energy and a chemical group to a second c) molecule. hint: think acetyl-coa d) the rule that oxidations release energy, whereas reductions require energy input, applies to all chemical reactions, not just those that occur in living cells. e) cold-blooded animals have an energetic disadvantage because they release less heat to the environment than warm-blooded animals do. this slows their ability to make ordered macromolecules.