MCAT Organic Question — Hormone
- Nov 26, 2014
- MCAT Blog, MCAT Organic, MCAT Question of the Day
- Reviewed By: Liz Flagge
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).
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