Chemical compounds containing nitrogen that are derived from the amino acid tyrosine are known as:
A. adrenalines
B. alpha-adrenergic receptors
C. catecholamines
D. thymosines
c
Rationale: Norepinephrine and epinephrine are catecholamines (chemical compounds containing nitrogen that are de-rived from the amino acid tyrosine), which bind to adrenergic receptors and produce sympathetic effects.
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