Final answer:
Carbohydrates, lipids, proteins, and nucleic acids can all be broken down into intermediate products that enter cellular respiration. Therefore, the correct answer is E. All of the choices are correct.
Step-by-step explanation:
Carbohydrates, lipids, proteins, and nucleic acids are the four major macromolecules that can be broken down into intermediate products that enter cellular respiration. Carbohydrates are broken down into glucose, which provides energy as ATP through metabolic pathways. Proteins are broken down into amino acids, lipids are broken down into fatty acids, and nucleic acids are broken down into their constituent parts. Therefore, the correct answer is E. All of the choices are correct.