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Microbiology 210 Chapter 1 exam with complete solutions
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Microbiology 210 Chapter 1 exam with complete solutions
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Microbiology 210 Chapter 1 exam withj j j j j
complete solutions
j j j
List jseveral jways jin jwhich jmicrobes jaffect jour jlives. j- jANSWER✓✓-1.
jmaintaining jearth's jeco jbalance
2. jmaintain jgood jhealth
3. jproduce jfood jand jchemicals
4. jcause jdisease
Describe jsome jof jthe jdestructive jand jbeneficial jactions jof jmicrobes. j-
jANSWER✓✓-destructive: jpathogenic; jspoil jfoods; j
soil jmicrobes jbreak jdown jwastes; jbeneficial: jphotosynthesis, jdigestion jand
jsynthesis jof jvitamins; jproduce jacetone jand jbutanol; jproduce jfoods; jmake
jjeans;
1-2 jRecognize jthe jsystem jof jscientific jnomenclature jthat juses jtwo jnames: j-
jANSWER✓✓-a jgenus jand ja jspecific jepithet j(species)
Distinguish ja jgenus jfrom ja jspecific jepithet. j- jANSWER✓✓-a jgenus: jCapitalized
jand j
a jspecific jepithet j(species): jnot jcapitalized
1-3 jDifferentiate jthe jmajor jcharacteristics jof jeach jgroup jof jmicroorganisms. j-
jANSWER✓✓-Bacteria j- jsimple, jsingle-celled jorganisms, jDNA jnot jenclosed,
jProkaryotic, jpeptidoglycan jcell jwall, jbinary jfission j(split jinto j2 jequal jparts),
jcontain jflagella
Archaea j- jprokaryotic, jpeptidoglycan jcell jwall, jfound jin jextreme jenvironments;
jpathogenic jin jhumans
Fungi- jEukaryotic, jnucleus jcontaining jDNA, juni/multi jcellular, jCHITIN jcell jwall,
jsexually jor jasexual jrepoduction
Protozoa j- junicellular, jeukaryotic, jmove jusing jpseudopods, jflagella jor jcilia,
jphotosynthesis, jsexual/asexual jreproduction
Algae j- jeukaryotic, jphotosynthetic, junicellular, jCELLULOSE jcell jwall.
jphyosynthetic
, Viruses j- jacellular, jsimple, jone jtype jof jnucleic jacid, jmust jhave jhost jto jsurvive.
jHelminths j- jMulticellular jAnimals, jeukaryotic, j(flat/round jworms)
Which jgroups jof jmicrobes jare jprokaryotes? j- jANSWER✓✓-Bacteria jand
jarchaea
Which jare jeukaryotes? j- jANSWER✓✓-Algae, jFungi, jProtozoa
1-4 jList jthe jthree jdomains. jWhat jare jthe jthree jdomains? j- jANSWER✓✓-
Bacteria, jArchaea, jEukarya
1-5 jExplain jthe jimportance jof jobservations jmade jby jHooke jand jvan
jLeeuwenhoek. j- jANSWER✓✓-He jdiscovered jlife's jsmallest jstructural junits
jcalled j'cells'; jdiscovered jlive jmicroorganisms
What jis jthe jcell jtheory? j- jANSWER✓✓-all jliving jthings jare jcomposed jof jcells
1-6 jCompare jspontaneous jgeneration jand jbiogenesis. j- jANSWER✓✓-Belief jthat
jsome jforms jof jlife jcould jarise jspontaneously jfrom jnonliving jmatter;
What jevidence jsupported jspontaneous jgeneration? j- jANSWER✓✓-Evidence
jthat jmay jsupport jspontaneous jgeneration jis jattributed jto jwhat jmicroorganisms
jthat jare jalready jpresent jon jsurface jor jin jthe jair. j
Redi's jexperiment jwith jone jcovered jand jone juncovered jmeat jjar jproducing
jmaggots jproved jthat jthis jcould jnot joccur jspontaneously
1-7 jIdentify jthe jcontributions jto jmicrobiology jmade jby jNeedham, j-
jANSWER✓✓-His jtheory jof jspontaneous jgeneration, jstrengthened jby jhis
jexperiment jafter jheating jbroths, jcooling jthem jand jpouring jinto jflasks jthat
jmicros jwere j"teeming"
Identify jthe jcontributions jto jmicrobiology jmade jby jSpallanzani j- jANSWER✓✓-
suggested jthat jmicros jfrom jthe jair jentered jNeedham's jbroths jafter jthey jwere
jboiled. jProved jfrom jexperimentation jthat jflasks jshould jbe jcovered jbefore
jboiling jto jprevent jmicrobial jgrowth
Identify jthe jcontributions jto jmicrobiology jmade jby jVirchow j- jANSWER✓✓-
biogenesis j- jhe jhypothesized jthat jcells jonly jappeared jafter jpresence jof
jpreexisting jcells j(but joffered jno jproof)
Identify jthe jcontributions jto jmicrobiology jmade jby jPasteur. j- jANSWER✓✓-
disproved jspontaneous jgeneration
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