A solution of starch at room temperature does not readily decompose to form a solution of glucose because
A)the starch solution has less free energy than a solution of glucose.
B)the hydrolysis of starch to glucose is endergonic.
C)the activation energy barrier for this reaction cannot easily be overcome at room temperature.
D)starch hydrolysis is nonspontaneous.

Question

Quizplus · Accepted Answer

The hydrolysis of starch to glucose is an exergonic reaction, meaning it releases energy. However, there is an activation energy barrier that must be overcome for the reaction to occur. At room temperature, the energy in the system is not sufficient to overcome this barrier, so the reaction does not occur readily.

A Solution of Starch at Room Temperature Does Not Readily