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Hormones April 21

Hormones April 21 - Hormones 1 what is a hormone and where...

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Hormones April 21, 209 1. what is a hormone and where do hormones and neuron systems overlap? What is a hormone? -a molecule produced in the body that acts on a target tissue in another part of the body -endocrine system comprised of all hormone secreting systems in the body -SLOW interval communication system in the body Endocrine and nervous systems are cooperative systems Instaneous vs. slow response 2. How hormones create a response at effecter cells? -target specific cells in the body via specific receptors -results in a change in behavior in a cell - if a cell doesn’t have a receptor, won’t respond 3. Main types of hormones -polypeptides- large proteins, must bind with a receptor protein on surface of cell- hydrophilic -amino acid derivatives – modified amino acid, must bind to surface receptor- hydrophilic - steroids- may pass through lipid bilayer to receptor inside cell How hormones function Hormones can bind to receptors on cell surface to affect cell on the inside [see figure in notes]
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Hormones April 21 - Hormones 1 what is a hormone and where...

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