Energy-requiring reactions can occur in biological systems because they can be coupled with reactions that are
A)unlikely.
B)not spontaneous.
C)endergonic.
D)exergonic.
E)spontaneous and endergonic.

Question

Quizplus · Accepted Answer

Energy-requiring (endergonic) reactions in biological systems can occur because they are often coupled with exergonic reactions, which release energy. This coupling allows the energy released from the exergonic reaction to drive the endergonic reaction forward.

Energy-Requiring Reactions Can Occur in Biological Systems Because They Can