Bio 181 ASU Exam 3 with complete solutions

BIO 181 ASU EXAM 3 WITH COMPLETE SOLUTIONS


1.T gor gF: gPotassium gions gare gat ghigh gconcentrations ginside gof gcells,
gincluding gneurons:

g g g g g gANS>>True



2.The gaction gpotential gis ga gresult gof:: g
g g gANS>> gthe gmovement gof gions



3.The gpost-synaptic gcell gcan gbe::
g g gANS>> gin gglands, gmuscle gcells gand gneurons



4.Th gresting gpotential gof ga gneuron gis:
g g gANS>> g-60Mv



5.T gor gF: gThe gcell gbody grefers gto gthe gpart gof gthe gneurons gthat gbegin
gat gthe gdendrites gand gextend gto gthe gaxon gterminal:

g g g g g gANS>> gfalse



6.T gor gF: gVoltage ggated gion gchannels gopen gwhen ga gprotein gbinds gto gthe
grecep- gtor:

g g g g g gANS>> gfalse



7.T gor gF: gExcitatory gsynapses gcause ghyperpolarization gof gpost-synaptic
gcells-

:
g g g g g g g g g g gANS>> gfalse



8.T gor gF: gAcetylcholinesterase gbreaks gacetylcholine ginto gmuscarinic gacid:
g g g gANS>> gfalse



9.In gthe gmotor gend gplate, gthe gevent gthat gis gthe gimmediate gtrigger gfor
gexocytosis gis: g

g g g g g g g gANS>>calcium gions



10.T gor gF: gFast gNeurons gas gdescribed gin glecture grequire gcytoplasmic
gsignal gtransduction gto gopen gan gion gchannel.: g

g g g g g g g g gANS>> gFalse




1 g/
g7

,BIO 181 ASU EXAM 3 WITH COMPLETE SOLUTIONS


11.T gor gF: gOnly gpre-synaptic gneurons gare gcoated gwith gmyelin.: g
g g g gANS>>False



12.T gor gF: gWhen gthe gpresynaptic gcell gcontacts ga gmuscle gcell, gthe gsynapse
garea gis gcalled ga gmotor gend gplate.:

g g g g g g g g gANS>> gTrue



13.T gor gF: gReceptors gare gmade gfrom gmembrane-bound gpolyribosomes.: g
g g gANS>>True



14.The gterminal gweb::
g g gANS>> gis ga gsite gof gexocytosis



15.T gor gF: gExcitatory gsynapses gcause gdepolarization gof gthe gpost-
synaptic gcell:
g g g g g g g gANS>>True



16. T gor gF: gThe gmembrane gpotential g(resting gpotential) gis glargely gset gby
gthe gNa-K- gATPase gpump.:

g g g g g g g g g gANS>> gtrue



17.The gneural gtissues gare::
g g g gANS>> gspinal gcord, gsensory gneurons gand gbrain



18.T gor gF: gthe gaxon gfrom ga gpre-synaptic gcell gcontacts gthe gaxon gof
ganother gneuron: g g

g g g g g g g g gANS>>false



19.T gor gF: gThe greceptors gin gpost-synaptic gcells gare gthe gbasis gon
gwhich gthe gsynapse gcan gbe gdefined gas ginhibitory gor gexcitatory:

g g g g g g g gANS>>false



20.4 gtypes gof gglial gcells:
g g g gANS>> gschwann, goligodendrocytes, gastrocytess gand gmicroglia



21.T gor gF: gThe gaxon ghillock gin gthe gpre-synaptic gneuron gfires gbased gon
gtemporal gand gspatial gsummation gof ginputs:

g g g g g g g gANS>> gtrue
2 g/
g7