8/6/2019 Written Exam I Potential Essay Questions F11

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BIO202

WrittenExamI PotentialEssayQuestions

HormoneAction

1. ExplainhowthecombinationofahormoneanditsreceptorcanaltertheGproteinsontheinnersurfaceoftheplasmamembrane. WhatistheactivesubunitoftheGproteinthatinteractswithandalterstheactivityofmoleculesinsidethecell?

2. DescribehowGproteinscanalterthepermeabilityoftheplasmamembrane.3. DescribehowGproteinscanalterthesynthesisofanintracellularmolecule,suchascAMP.4. Describehowahormonethatcrossestheplasmamembraneinteractswithitsreceptorandhowit

alterstherateofproteinsynthesis. Whyistherenormallyalatentperiodbetweenthetimehormonesbindtotheirreceptorsandthetimeresponsesareobserved? Whattypesofhormonesarethese?

Blood

1. Describefivewaysthebloodhelpsmaintainhomeostasis.2. Whereareredbloodcellsremovedfromtheblood? Listthethreebreakdownproductsof

hemoglobinandexplainwhathappenstothem.3. Startingwiththeformationofprothrombinaseinthecommonpathway,describetheeventsthat

resultinclotformation.4. Whatareantigensandantibodies? Howdotheycauseagglutinationandbloodclotting?5. Describetheeventsthatleadtothedevelopmentofhemolyticdiseaseofthenewborn(HDN). Why

doesntHDNusuallydevelopinthefirstpregnancy?LymphandImmuneSystem

1. Listthecellsinvolvedwiththeinnateimmuneresponseandgivetheprimaryfunctionofeach.2. DescribetheeventsthattakeplacefromthetimeaBlymphocytebecomesactivatedbyanantigen

duringaprimaryresponse. DescribewhathappenstothesameBlymphocytesduringasecondaryresponse. Whatarethemajordifferencesbetweenprimaryandsecondaryresponses?