please answer parts a,b and c of the question. they are all to one question

Which of the following best describes the role of enzymes in the body? Enzymes lower the barrier for reactants to be broken down into its products and vice versa Enzymes cause reactants to be broken down into its products and vice versa Enzymes increase the amount of energy that is released from the breakdown of reactants into its products Enzymes decrease the amount of reactants necessary for its products to be formed Which of the following best describes how ATP provides energy for cellular work? Through the cleavage of a high-energy bond between phosphate molecules Through the cleavage of a high-energy bond between adenosine and a phosphate molecule Through the synthesis of a high-energy bond between phosphate molecules Through the synthesis of a high-energy bond between adenosine and a phosphate molecule Which of the following is the best description of bioenergetics? It is metabolism in the human body It is the process by which the human body turns chemical energy into biological energy It is the process by which the human body turns chemical energy from the sun into mechanical energy for work None of the above