easy · MCAT bio-biochem
A patient is admitted to the hospital with a severe bacterial infection. The physician orders a dose of a peptide hormone to regulate the patient’s metabolic response.
Which of the following is most likely the hormone administered, and what is its characteristic feature?
- Insulin; it is a 51-amino acid peptide that binds a cell-surface receptor.
- Cortisol; it is a steroid that binds to an intracellular receptor.
- Epinephrine; it is an amino-acid derivative that crosses the plasma membrane.
- Thyroxine; it is a peptide that regulates long-term metabolic rates.
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