Assertion: endocrine system's hormone | /r/HasProperty | polypeptide
Facets:
Source sentences:
text: They secrete a hormone known as glucagon which is a polypeptide made up of 29 amino acids, which raise blood sugar as needed to maintain normal levels.
text: Water-soluble hormones (polypeptide, protein, and most amino acid hormones) bind to a receptor protein on the plasma membrane of the cell.