Singalling in Mmebranes Exam questions and answers Signaling pathway components - extracellular stimulus - receptor protein - signalling machinery - effectors - signal termination Cell Surface receptors - ligand gated ion channels - GPCRs - Enzyme coup
Singalling in Mmebranes Exam questions and answers Signaling pathway components - extracellular stimulus - receptor protein - signalling machinery - effectors - signal termination Cell Surface receptors - ligand gated ion channels - GPCRs - Enzyme coupled receptors Ligand gated Ion channels - prevent ions from crossing bilayer - ex Nicotinic acetylcholine receptor in CNA autonimic ganglia Nicotinic receptor activation - channel pore is close - ACh binds - Channel opens - Na+ enter cell - depolarization - provokes response Enzyme coupled receptors - inactive - ligand binds - types: receptor tyrosine kinases, receptor threionine kinases, proteases lin
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