easy · MCAT bio-biochem
A new hormone is discovered that is 51 amino acids long. It binds to a G-protein-coupled receptor on the surface of target cells, triggering a fast-acting cAMP second messenger cascade. This hormone is best classified as a:
- Nucleotide-derived signaling molecule
- Steroid hormone
- Amine hormone with lipid solubility
- Peptide hormone
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