Large organic molecules are usually assembled by polymerization of a few kinds of simple subunits. Which of the following is an exception to this statement?
A) a steroid
B) cellulose
C) DNA
D) an enzyme
E) a contractile protein

Question

Quizplus · Accepted Answer

Steroids are not assembled by polymerization of simple subunits. They are composed of four fused rings of carbon atoms, and their chemical structure is quite different from other large organic molecules such as proteins, nucleic acids, and carbohydrates.

Large Organic Molecules Are Usually Assembled by Polymerization of a Few