What are the three types of hormones and how do they chemically differ from each other
The three types of hormones are:
1. Peptide and protein hormones: Peptide and protein hormones are made up of chains of amino acids. They are water-soluble and typically bind to cell surface receptors to trigger a cellular response.
2. Steroid hormones: Steroid hormones are derived from cholesterol and are lipid-soluble. They can pass through cell membranes and bind to intracellular receptors to regulate gene expression.
3. Amino acid-derived hormones: Amino acid-derived hormones are derived from the amino acids tyrosine and tryptophan. They can be water-soluble or lipid-soluble, depending on their structure, and typically bind to cell surface receptors to initiate a cellular response.
These hormones chemically differ from each other in terms of their structure, solubility, and mechanism of action. Peptide and protein hormones are made up of amino acid chains, steroid hormones are derived from cholesterol, and amino acid-derived hormones are derived from specific amino acids. Additionally, they differ in their solubility - peptide and protein hormones are water-soluble, steroid hormones are lipid-soluble, and amino acid-derived hormones can be either. Finally, they differ in their mechanism of action - peptide and protein hormones typically bind to cell surface receptors, steroid hormones bind to intracellular receptors, and amino acid-derived hormones can bind to both cell surface and intracellular receptors.