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BIOS 242 Week 5 Concepts; The Immune System

Lab8:FomiteTransmission LearningObjectives: • Definefomiteandhowbacteriaaretransferredviafomites. • Explaintheroleoffomitetransmissioninthehospital. • Definenosocomialinfections,HAIs(hospitalacquiredinfections),andIatrogenicinfections. Introduction: Materials:Agarplate,Marker,ruler,sterileswabs Method: 1. Obtainonenutrientagaranddividethebackoftheplateinto8sectionsusingrulerandmarker.Labeleachsection 1-8. 2. Usinganewsterileswab,swab8differentinanimateobjectsfoundinthelabareaa...

LabReport: Disinfectants and Antibiotics Purpose: Describe thepurposeofthe lab. Exercise1:Disinfectants Organism1: Besuretorecordthechemicalorproductyoutestedandcompletethistablebyobtainingdatafromothergroupsinyourclass Organism2: Besuretorecordthechemicalorproductyoutestedandcompletethistablebyobtainingdatafromothergroupsinyourclass Questions: 1. Wasyourtestchemicaleffective?Brieflyexplain. 2. Wasyourtestchemicalmoreeffectivethatthelabdisinfectant?Brieflyexplain. 3. Wasyourtestche...

RequiredResources Read/reviewthefollowingresourcesforthisactivity: • Textbook:Chapters12,13 • WeeklyConcepts InitialPromptInstructions Youwillbetheexpert:Imagineyouareteachingaclassoncontrollingmicrobialgrowthin the environment. To test your students, you will present them with a scenarioincluding a site and some probably microbes present. They must design a strategy toeliminateharmfulmicrobesfromthearea. In this discussion, each student should present a scenario for analysis by his ...

Week4Concepts:ControllingMicrobialGrowth ControllingMicrobialGrowth Prepare:ControllingMicrobialGrowth • Thesterilizinggasusedinchemiclavesis . • HEPAfiltersareusedtoremovemicrobesfrom • Whichofthefollowingmicrobialformshasthehighestresistancetophysicalandchemicalcontrols? • Sterilizationisachievedby • Themethodofremovingvegetativemicrobiallifeformsanddebristoreducecontaminationtosafelevelsistermed • isahalogenusedingaseousandliquidformforlargescaledisinfectionofdrinkingwate...

Lab6:CarbohydrateFermentation LearningObjectives: • Definefermentationanddevelopaknowledgeoffermentationendproducts. • Understandthetheorybehindthecarbohydratefermentationprocedure. • Understandthevariouscomponentsofthecarbohydratemediaandhowthesecomponents work. • Appropriatelyanalyzeresultsforavarietyofmicroorganisms. Intheclinicallaboratory,onetechniqueusedtoidentifybacteriaisthecarbohydratefermentationtests.Bacteriahavetheabilitytoutilizedifferenttypesofcarbohydrates;ifthebact...

Lab5:DifferentialStaining LearningObjectives: • Explaintheprincipleofdifferentialstaining • Applydifferentialstainingtoidentifybacteria Differentialstainusestwoormorestainstospecificallystaincertainstructuresorcellularcomponentswhichcannotbeeasilyobservedusingsimplestains.Differential staining principles are based upon the specific chemical nature and composition of cellular components and therefore, different structures areobservedusingdifferentstainsandstainingprocedures.Differenti...

MICRO. Exam 1 1. Question:Describe the idea of spontaneous generation and what experiments have refuted this idea? Describe the experiment of Louis Pasteur in detail as well as the inferences that were made. What was a specific feature of the experiment that has allowed to experiment? 2. Question:Postulates of Robert Koch. List them all and their significance in microbiology. 3. Question:Review the contribution of each scientist in the field of Microbiology: John Snow, Alexander Fleming, Igna...

Exam1review WEEK1 HereissomeinformationaboutExam1. • Thisexaminationcoverscontentlearnedinweeks1and2. • Thisexamisworth120totalpoints,andincludesthefollowingtypesofquestions: o 25Multiplechoicequestions o 5Fillintheblankquestions o 2Shortanswerquestions o 2Essayquestions • Youhave90minutestocompletetheExam. • Whenthetimelimitisreached,youwillautomaticallybeexitedfromtheexam. • Remembertochoosethebestanswer,somequestionsmayhavemorethanonecorrectanswerbutonly one BESTanswe...

Required Resources Read/review the following resources for this activity: • Textbook: Chapters 7, 8 • Weekly Concepts Initial Post Instructions Class, let’s discuss the categories that organisms can be grouped in based on their nutritional requirements. Find one microorganism, either a prokaryote or eukaryote, and describe the environment in which it lives. (Does it live underwater? On skin? In soil? Give as many details as possible!) To complete your initial post, you will then use...

Week 3 Discussion: Culturing Microorganisms Required Resources Read/review the following resources for this activity: • Textbook: Chapters 7, 8 • Weekly Concepts Initial Post Instructions Class, let’s discuss the categories that organisms can be grouped in based on their nutritional requirements. Find one microorganism, either a prokaryote or eukaryote, and describe the environment in which it lives. (Does it live underwater? On skin? In soil? Give as many details as possible!) To ...

Week3Concepts:Metabolism FactorsaffectingMicrobialGrowth Prepare:FactorsAffectingMicrobialGrowth • Thephaseofthebacterialgrowthcurveinwhichtherateofmultiplicationequalstherateofcelldeathisthe .deathphase • AnorganismthatgrowsinlowerpHconditionsiscalleda . • Anorganismthatusesorganiccarbonforitscarbonneedsandsunlightforitsenergyneedswouldbecalleda . Self-Check:GrowthRequirementsinMicroorganisms • Place the images in order from top to bottom to show extracellular digestion in ba...

WK3ALTMicrobialNutrition 1. Theorganismsthatcanuseinorganiccarbonandtheenergyofchemicalreactions ______ . 2. A______requiresorganicmoleculesforcarbonandenergyfromsunlight. 3. During______transportwatertransfersthroughsemipermeablefollowing concentration gradient. 4. Microorganismslivinginsoilandwaterassociatedwithvolcanicactivity,compostpiles,habitatsdirectlyexposedtothesunare______. 5. In______transportnutrientsaretransportedagainstthediffusiongradientorinthesamedirectionasthenaturalgrad...

Lab4:SimpleStaining LearningObjectives: • Tolearnaboutprincipleofstaining • Tolearntheprocessofsimplestain • Topreparewetmountslides Exercise1:SimpleStainMaterials: OvernightculturesofS.epidermidis,B.subtilis,S.cerevisiae(yeast),inoculatingloop,glassslides,incinerators,crystalvioletoranyotherstainchosenbyinstructor;tongs,stainingracks/trays,immersionoil,lenspaper,bibulouspaper,microscope Method: 1. Obtainacleanglassslide,loopandovernightcultures.Holdtheglassslidesfromtheedgestoav...

Lab3:Microscopy-ObservationofCells LearningObjectives: • Usethecompoundlightmicroscopeforobservationofcells. • Identifydifferenttypesofbacteriabasedontheirshapes. • Identifyavarietyofeukaryoticcells. Introduction: Exercise2:ObservationofDifferentTypesofBacteriaMaterials: Compoundmicroscope,immersionoil,lenswipes,preparedslidesofvariousbacteria-Rods,cocciandspiral Method: 1. Obtainthepreservedslideofabacteria. 2. UseAppendixAandfollowtheinstructionsonhowtouseaMicroscope. 3. O...

Week2Concepts:ClassificationandNutrition ProkaryoticvsEukaryoticCells Prepare:ProkaryoticvsEukaryoticCells • Thecellularstructuresfoundinprokaryotesare(selectallthatapply) • TheGramstainworksbecauseofdifferencesinthe ofbacteria. Prokaryotesinclude • Which of the following structures contribute to pathogenicity of bacteria (select all that apply) Self-Check: Bacteria andArchaea • Drag the cell types to the three respective highlighted images at the bottom. Self-Check:BacteriaExte...

Week2Concepts:ClassificationandNutrition ProkaryoticvsEukaryoticCells Prepare:ProkaryoticvsEukaryoticCells • Thecellularstructuresfoundinprokaryotesare(selectallthatapply) • TheGramstainworksbecauseofdifferencesinthe ofbacteria. Prokaryotesinclude • Which of the following structures contribute to pathogenicity of bacteria (select all that apply) Self-Check: Bacteria andArchaea • Drag the cell types to the three respective highlighted images at the bottom. Self-Check:BacteriaExte...

BIOS 242 Week 6 Assignment; Pathogens

Week6Concepts:EpidemiologyofInfectiousDiseases Skin,NervousSystem,andCirculatorySystemPathogens Prepare:SkinandNervousSystemPathogens • Whichofthefollowingisnotapriondisease? • Mostcasesofsepsisarecausedby . • Protectivefeaturesoftheskinincludeallofthefollowingexcept . • Whichofthefollowingisafebrilediseasecharacterizedbyarashand iscausedbyavirusthatcancrosstheplacentato cause serious fetaldamage? • Thetransmissionof oftenoccursviainfectedtooth,dentaltrauma,orsmallskinwounds. ...

InitialPostInstructions Some microorganisms like Staphylococcus, Streptococcus, Yesinia pestis, E. coli cancause diseases of different body systems. Let's investigate how the same pathogen isresponsible for different pathophysiological symptoms. First, choose a microorganismfoundinmultiplesystems.Then,describeyourpathogen'sroleindiseaseforonebodysystem: report the disease caused, the normal function of that system,pathophysiological symptoms, and the virulence factor(s) that contribute(s) to ...