thyroid hormone also uses this mechanism

thyroid hormone also uses this mechanism - thyroid hormone...

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thyroid hormone also uses this mechanism - hormone enters the nucleus; binds to & activates intracellular receptor - the hormone-receptor complex binds a DNA-associated receptor protein, which turns on transcription & translation of the associated gene - the protein synthesized in many cases is an enzyme that effects the metabolic activities of the cell to transmit the effects of the hormone Hormones are specific for their target cells: - hormones bind specific receptors; the receptor will only bind to one hormone & number of receptors on the target cell - up-regulation: increase in the # of receptors for a hormone on a target cell - down-regulation: decrease in the # of receptors for a hormone on a target cell The half-life of a hormone (persistence of a hormone in blood, a time indicating half its activity remaining) is brief (from a fraction of a minute to 30 minutes), but the effects of hormones can last for several minutes to hours
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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thyroid hormone also uses this mechanism - thyroid hormone...

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