bio notes4

bio notes4 - Types of signaling complexes G protein...

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Types of signaling complexes G protein (coupled receptors) Receptors which function as tyrosine kinase Intracellular receptors (for steroid hormones) Ligand-gated ion channels WORKSHEETS!!!!! Signaling in Animals Long distance signaling (hormones) Endocrine system: regulatory system, maintains homeostasis through hormones Homeostasis: steady state physiological condition Constant pH levels, body temperature, ion concentrations Hormones: regulatory chemicals, produced in endocrine glands, secreted into the blood and carried to target cells [extracellular “first” messenger] Target cells respond to hormone by altering their metabolism, they have receptor for specific first messengers -Different cell types will have a different profile of receptors Consists of hormone and the glands (endocrine glands=ductless glands) which secrete them Endocrine glands secrete hormones into the circulation Regulation results from function of the endocrine system and the nervous system Ex: specialized neurosecretory cells secrete hormones
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This note was uploaded on 08/22/2010 for the course BIOL 1201 taught by Professor Wishtichusen during the Spring '07 term at LSU.

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bio notes4 - Types of signaling complexes G protein...

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