Final answer:
peptide hormones are composed of multiple amino acids linked to form chains, unlike amine hormones, which are derived from a single modified amino acid.
Step-by-step explanation:
peptide hormones are derived from multiple amino acids, not a single type of modified amino acid.
Peptide hormones consist of short chains of amino acids while protein hormones are longer polypeptides. Both types are produced through the transcription of DNA into mRNA and the subsequent translation into an amino acid chain. This process is similar to the synthesis of other body proteins. In contrast, amine hormones are derived from a single amino acid. For instance, melatonin comes from tryptophan and epinephrine from tyrosine. Peptide hormones, such as oxytocin and growth hormone, are synthesized by the pituitary gland among other locations and are larger than the amino acid-derived hormones.
Peptide hormones are derived from multiple amino acids that link to form an amino acid chain. They consist of short chains of amino acids and are synthesized like other body proteins. On the other hand, amine hormones are derived from a single modified amino acid.