試題詳解

39. One distinction between peptide and steroid hormones is that steroid hormones:
(A) bind to their receptors with low affinity, whereas peptide hormones bind with high affinity.
(B) bind to nuclear receptors, whereas peptide hormones bind to cell surface receptors.
(C) are less stable than peptide hormones.
(D) are generally water-soluble, whereas peptide hormones are water-insoluble.
(E) act through specific receptors, whereas peptide hormones act through nonspecific receptors.