BIOL 1201 Lecture : Final Notes
Document Summary
8:54 am: cell signaling, direct contact, local, paracrine and synaptic signals, distant, hormonal signals, stages of cell signaling, reception, transduction, response, responses, nuclear responses, cytoplasmic responses, signal transduction, examples, g-protein, tyrosine kinase. Inside is generally -50 to -100 mv: outside the cell, high [] na, high [] cl- Inside the cell: high [] k, high [] organic molecules (-, k+ diffuse out of the cell, na-k pump pumps ions unequally, action potential. If a depolarization is great enough it will stimulate an action potential: this involves voltage-gated channels, voltage-gated channels, voltage gated channels, na, k, differ in: Ions allowed to pass: number of gates, na+ channels : 2 gates, activation gate (open) Ipsp: inhibitory postsynaptic potential (less likely to fire an action potential: enzymes secreted by postsynaptic membrane destroy neurotransmitters, neurotransmitters pump back to the pre-synaptic cell. Integration of signals: since many neurons may synapse with one it is the combination of.
