Which of the following statements bests describes how nonspontaneous reactions occur in the body?
A) Reactions that are not spontaneous do not occur in the body.
B) Enzymes make these reactions occur at a reasonable rate.
C) The heat of the body drives these reactions.
D) They are coupled to spontaneous reactions.
E) Nonspontaneous reactions occur just like spontaneous ones do, without any input of energy.

Question

Quizplus · Accepted Answer

Nonspontaneous reactions in the body can occur if they are coupled to spontaneous reactions that release enough energy to drive the nonspontaneous reaction forward. This coupling is often achieved through the use of enzymes, which can lower the activation energy required for both reactions to occur simultaneously. This allows nonspontaneous reactions, such as the synthesis of complex biomolecules, to take place at a reasonable rate within the body.

Which of the Following Statements Bests Describes How Nonspontaneous Reactions