Hormones Known as "Catecholamines" Are

Question

Hormones known as "catecholamines" are
A)lipids.
B)peptides.
C)steroids.
D)amino acid derivatives.
E)derivatives of reproductive glands.

Accepted Answer

Catecholamines, such as epinephrine and norepinephrine, are derived from the amino acid tyrosine and are therefore amino acid derivatives, not lipids, peptides, steroids, or reproductive gland derivatives.