Which of the following molecules is a hormone capable of creating physiological and anatomical changes during adolesence which will last a person’s entire life?
A: Polypeptide. Note all of the amide bonds. This polypeptide is vasopressin.
B: Classic four-ring steroid structure. This is estradiol.
C: Sugar ring attached to nitrogenous base makes this a nucleotide. This is cytosine monophosphate.
D: Lengthy carbon chains attached to a phosphate group indicates a phospholipid.
The question makes reference to a steroid hormone such as testosterone. That’s (B).