Section: Chemical and Physical Foundations of Biological Systems

33) 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?

1. 
2. 
3. 
4. 

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.