Which of the following statements concerning peptide hormones is incorrect?
A) Peptides are synthesized by the endoplasmic reticulum-Golgi complex system.
B) Peptides circulate largely bound to plasma proteins.
C) Peptides bind to surface receptors of their target cells.
D) Peptides exert their effect largely by means of second-messenger systems.
E) Peptides are released by exocytosis upon appropriate stimulation.

Question

Quizplus · Accepted Answer

Peptide hormones are generally water-soluble and circulate freely in the bloodstream without the need for binding to plasma proteins.

Which of the Following Statements Concerning Peptide Hormones Is Incorrect