Which Statement Is True About Peptide Hormones

Multiple Choice

Which statement is true about peptide hormones?

A) Peptide hormones all have the same basic 4-carbon ring structure.
B) Peptide hormones bind to receptors in the cell cytoplasm.
C) Peptide hormones initiate the formation of cyclic AMP inside the cell.
D) The minority of hormones produced in the body are peptide hormones.
E) Peptide hormones usually require a first, second and third messenger.