
Hormones
In Our Time
Exploring the Composition and Functions of Different Hormones
Protein and peptide hormones are made of amino acids encoded by genes, with a sequence and arrangement of amino acids determining the hormone molecule's properties. Steroid hormones, such as testosterone and estrogen, are made from cholesterol with a common structure. Modified amino acid hormones, like thyroid hormones and adrenaline, result from chemically changing specific amino acids like tyrosine. Hormones play crucial roles during pregnancy and childbirth, leading to significant hormonal changes in the mother.
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