microbio final mcgraw hill questions exam with correct answers

microbiofinalmcgrawhillquestions
examwithcorrectanswers

Plantsaredependentonmicroorganisms for

A)providingcomplexproteins

B)providingsimplecarbohydrates

C)providingoxygeninausableform

D)changingatmospheric nitrogentoausable form

E)providingwater-correct answer✔✔D



Identifywhichofthefollowingis/are eukaryotes:

1.Algae

2.Bacteria

3.Viruses

4.Prions

5.Protozoa-correct answer✔✔1,5



T/F:Virusesandbacteriaarebothbasedontheunitofacell.-correct answer✔✔false



WhichofthefollowingstatementsaboutbacteriaisFALSE?

A)mostbacteriaareactuallyhelpful,notharmful.

B)mostbacteriahavebeengrowninculture andcharacterized.

C)prokaryoticcellshaveanucleoidcontainingDNA.

D)yogurtcontainsmanybacterial cells.

E)bacterialcellwallscontainpeptidoglycan.-correct answer✔✔B

,Whichpairhasmembersthataremostsimilar inappearance?

A)algaeandarchaea

B)bacteriaandviruses

C)virusesandalgae

D)archaeaandbacteria

E)fungiandalgae-correct answer✔✔D



Microbesareuseful researchtoolsbecause

A)theyarecheapandeasytogrowinthelaboratory

B)theycanbegrowninlarge numberveryeasily

C)Allofthesesanswerchoicesarecorrect

D)theyusethesamemetabolicpathwaysaseukaryotic cells

E)theyarecheapandeasytogrowinthelaboratoryANDtheyarethesamemetabolicpathwaysas
eukaryotic cells-correct answer✔✔C



Microorganismsareinvolvedin

A)causingdisease

B)curing/treatingdisease

C)preparingfood

D)cleaninguppollutants

E)Alloftheseanswerchoicesarecorrect-correct answer✔✔E



Youareexaminingapeaplantthatisshowingsignsofdisease—brownleavesandnopeapods.You
isolate anagentfromtheplantthatonlycontainsRNAandprotein.Thisisa(n)

A)virus

B)viroid

,C)bacterium

D)protozoan

E)fungus-correct answer✔✔A



Whichofthefollowingisfoundonlyinbacteria?

A)ATP

B)phospholipids

C)chlorophyll

D)peptidoglycan

E)DNA-correct answer✔✔D



Ifyoudiscoveredanewprotozoan,towhichdomain(s)woulditbelong?

A)prokaryaorbacteria

B)prokarya

C)prokaryaorachaea

D)bacteriaandarchaea

E)eukarya-correct answer✔✔E



Theterminal electronacceptorinrespirationmaybe

A)NAD,oxygen,ORnitrate.

B)aninorganic molecule,water,ORoxygen.

C)oxygennitrate,ORaninorganic molecule.

D)NAD,nitrate,ORaninorganicmolecule.

E)NAD,water,ORaninorganic molecule.-correct answer✔✔C



Fermentation

, A)usesanorganicmolecule asthefinalelectronacceptorANDisnecessaryinsomeorganismsto
producereducedelectroncarriers.

B)resultsintheproductionofalarge amountofATP.

C)usesanorganicmoleculeasthefinalelectronacceptor.

D)usesaninorganic molecule asthefinalelectronacceptor.

E)isnecessaryinsomeorganismstoproducereducedelectroncarriers.-correct answer✔✔C



Protonmotiveforce

A)isusedtosynthesizeATP

B)isusedtoproduceNADH

C)isusedtosynthesize ADP

D)isusedtoproduceFADH2

E)usesADPandATP-correct answer✔✔A



Themostcommonstartingpathwayforthebreakdownofsugars

A)anabolism

B)fermentation

C)glycolysis

D)oxidation

E)respiration-correct answer✔✔C



WhathappenstothecarbonmoleculesinthepyruvicacidthatgoesthroughtheTCAcycle?

A)theyform"energystoringmolecules" forthecell

B)theyareexcretedaswasterorganicacids

C)theygetincorporatedintocellmaterial

D)theybecomephosphorylated