curÂ·renÂ·cy. (kÃ»râ²Én-sÄ, kÅ­râ²-) n. pl. curÂ·renÂ·cies. 1. Money in any form when in actual use as a medium of exchange, especially circulating paper money. 2. Transmission from person to person as a medium of exchange; circulation: coins now in currency. 3. General acceptance or use; prevalence: the currency of a slang term.
(T/F) Most hormones can be classified chemically as either amino-acid based or steroids. True. Most hormones belong to the amino-acid group, while others (steroids) are derived from cholesterol.
Peptide Hormones and Protein Hormones: Examples of peptide hormones are hypothalamic hormones (e.g., antidiuretic hormone (ADH), Oxytocin). Protein hormones include insulin, glucagon, pituitary hormones (e.g., growth hormone, thyroid stimulating hormone), thyrocalcitonin hormone, parathyroid hormone. 3. Iodothyronines: Iodothyronines is group of iodinated amino acids with a diphenyl ether ring system in the side chain.