Final answer:
The incorrect statement is option D because metabolism involves both exergonic (energy-releasing) and endergonic (energy-absorbing) reactions, not just exergonic reactions as claimed.
Step-by-step explanation:
The statement that is false or incorrect is:
D) A key feature of the body's metabolism is the almost exclusive use of exergonic reactions by the body.
This statement is false because the body's metabolism involves both exergonic and endergonic reactions. Exergonic reactions, like the breakdown of glucose, release energy and are often associated with catabolic processes. Meanwhile, endergonic reactions require an input of energy and are associated with anabolic processes, such as building complex molecules.
Both types of reactions are necessary for the body's metabolism. While exergonic reactions do release more energy than they consume, providing energy that can be used by the body, endergonic reactions are just as crucial because they allow for the synthesis of vital compounds, which usually require more energy to form than they release.