Weekly Problem Set 4-1.docx - Weekly Problem Set#4(Chapters...

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Weekly Problem Set #4 (Chapters 8 and 9)1.Put the following olfactory transduction events in order:_5__ Cl-efflux which depolarizes the cell_1__ GPCR binds odorant_4__ Ca2+-activated Cl-channel opens_2__ OLFstimulates adenylyl cyclase_3__ Increased cAMP opens a cAMP-gated cation channel leading to influx of Na+and Ca2+ 2.Would each of the following manipulations below increase, decrease, or have no effect on membrane depolarization of an olfactory receptor neuron (ORN) upon binding to an odorant? (circle one per line) A. Block chloride channels Increase Decrease No Effect B. Increase extracellular Ca2+ IncreaseDecrease No Effect C. Ablate (destroy) its glomerulus Increase Decrease No Effect D. Increase cAMP in ORN IncreaseDecrease No Effect
3.A. Selective ablation of rods would largely affect (select all that apply):

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