Chemical reactions in a living system function to
A) only transfer energy from one molecule to another.
B) create new energy.
C) only use energy stored in a molecule.
D) transfer energy from one molecule to another or use energy stored in a molecule.

Question

Quizplus · Accepted Answer

Chemical reactions in a living system can either transfer energy from one molecule to another, as in metabolic pathways, or utilize the energy stored within a molecule, as in cellular respiration. Therefore, the correct choice is D, which encompasses both possibilities. Option A and C are not comprehensive enough, while option B is not accurate as chemical reactions do not create new energy, but rather convert it from one form to another.

Chemical Reactions in a Living System Function to