Even though cellular macromolecules contain a large number of carbon and hydrogen atoms, they are not all spontaneously converted into CO₂ and H₂O.This absence of spontaneous combustion is due to the fact that biological molecules are relatively __________ and an input of energy is required to reach lower energy states.

Question

Quizplus · Accepted Answer

The sentence states that cellular macromolecules are not spontaneously converted into CO₂ and H₂O because biological molecules are relatively stable, meaning they have low energy and are less likely to undergo spontaneous reactions. Therefore, the best choice is C, stable.

Even Though Cellular Macromolecules Contain a Large Number of Carbon