【单选题】All cells require energy to survive, and the laws of thermodynamics need to be followed within biologic systems. Which one of the following bioenergetic terms or phrases is defined correctly?
A.
The first law of thermodynamics states that the universe tends toward a state of increased order.
B.
The second law of thermodynamics states that the total energy of a system remains constant.
C.
The change in enthalpy of a reaction is a measure of the total amount of heat that can be released from changes in the chemical bonds.
D.
Δ G0 ′ of a reaction is the standard free-energy change measured at 37 ° C and a pH of 7.4.
E.
A high-energy bond is a bond that releases >3 kcal/mol of heat when it is hydrolyzed.