MICROBIOLOGY BIO250 STRAIGHTERLINE FULL COURSE GRADED EXA
g g g g g g
MS 1,2,3,4,5,6 MIDTERM EXAM(2 VERSIONS) AND FINAL EXAM (2 VERS
g g g g g g g g g
IONS) MAY 2022 AGRADE g g g
StraighterlinegMicrobiologygExamg1 BIO250_Saylor_V5
Grade:g81.00goutgofg90.00g(90%)
1. Amonggthegtypesgofgmicroorganisms,gthe aregnoncellular.
a.gviruses
b. helminths
c. protozoans
d. bacteria
2. Thegwavelengthgofglightgusedgandgthegnumericalgapertureggoverns .
c.gmagnification
d.g sizegofgthegfield
e.g contrast
3. Whatgisgthegmaximumgnumbergofgelectronsgingthegfirstgenergygshellgofgangat
om?
4. Thioglycolategmediumgcontainsgthegfollowing:gyeastgextract,gpancreaticgdigestgo
fgcasein,gglucose,gL-
cysteine,gsodiumgchloride,gsodiumgthioglycolate,gandgagar.g Itgisgconsideredgagco
mplexgmediumgbecause
a.gbothgyeastgextractgandgpancreaticgdigestgofgcaseingaregnotgchemicallygdefined.
,c. dependinggongtheirgoxygengutilizationgpattern,gorganismsgwillggrowgdifferentlygongit
.
d. thioglycolateghasgagcarbon-
sulfurgbondgthatgmanygmicrobesgcannotgbreakgenzymatically.
5. Whichgofgthegfollowinggisgnotgagpyrimidine?
a.gUracil
,d.g Cytosine
6. Thegfirstgcellsgappearedgabout billiongyearsgago.
a.g5
e.g1
7. Whichgofgthegfollowinggisgnotganginoculatinggtool?
8. Ingthegcellgcytoplasm,gmoleculesgofgATPgarega .
9. Burninggcoalgproducesgsulfurgdioxidegingthegatmosphere.gWhengcombinedgwithgr
aingthatgfallsgintogbodiesgofgwater,gthisgleadsgto
a.g angincreasegingpHglevelgofgthegwater.
10. Whichgtypegofgmediumgwouldgbegthegbestgchoicegwhengshippinggagsamplegofgba
cteriagfromgagclinicgtogaglaboratorygforgtesting?
, 11. Thegsimplegmicroscopesgusedgbygthegearliestgpractitionersgofgmicroscopygc
ontainedgwhichgofgthegfollowing?
12. Substancesgthatgreleasegionsgwhengdissolvedgingwatergandgconductgelectricitygar
e .
a.g covalent
b.gnonpolar
c.g electrons
d.g electrolytes
e.g solvents
13. Hydrogengbonds
14. Ag reducingg mediumg contains
a.gsugarsgthatgcangbegfermented.
b.gextragoxygen.
c.ghemoglobin,gvitamins,gorgotherggrowthgfactors.
d.gsubstancesgthatg removeg oxygen.
e.ginhibitinggagents.
15. WhichgofgthegfollowinggisgNOTgagrecentgdiscoverygthatghasghadgaghugegimpactgo
ngthegunderstandinggofgmicrobiology?
a. Restrictiongenzymes
b. PCRg technique
g g g g g g
MS 1,2,3,4,5,6 MIDTERM EXAM(2 VERSIONS) AND FINAL EXAM (2 VERS
g g g g g g g g g
IONS) MAY 2022 AGRADE g g g
StraighterlinegMicrobiologygExamg1 BIO250_Saylor_V5
Grade:g81.00goutgofg90.00g(90%)
1. Amonggthegtypesgofgmicroorganisms,gthe aregnoncellular.
a.gviruses
b. helminths
c. protozoans
d. bacteria
2. Thegwavelengthgofglightgusedgandgthegnumericalgapertureggoverns .
c.gmagnification
d.g sizegofgthegfield
e.g contrast
3. Whatgisgthegmaximumgnumbergofgelectronsgingthegfirstgenergygshellgofgangat
om?
4. Thioglycolategmediumgcontainsgthegfollowing:gyeastgextract,gpancreaticgdigestgo
fgcasein,gglucose,gL-
cysteine,gsodiumgchloride,gsodiumgthioglycolate,gandgagar.g Itgisgconsideredgagco
mplexgmediumgbecause
a.gbothgyeastgextractgandgpancreaticgdigestgofgcaseingaregnotgchemicallygdefined.
,c. dependinggongtheirgoxygengutilizationgpattern,gorganismsgwillggrowgdifferentlygongit
.
d. thioglycolateghasgagcarbon-
sulfurgbondgthatgmanygmicrobesgcannotgbreakgenzymatically.
5. Whichgofgthegfollowinggisgnotgagpyrimidine?
a.gUracil
,d.g Cytosine
6. Thegfirstgcellsgappearedgabout billiongyearsgago.
a.g5
e.g1
7. Whichgofgthegfollowinggisgnotganginoculatinggtool?
8. Ingthegcellgcytoplasm,gmoleculesgofgATPgarega .
9. Burninggcoalgproducesgsulfurgdioxidegingthegatmosphere.gWhengcombinedgwithgr
aingthatgfallsgintogbodiesgofgwater,gthisgleadsgto
a.g angincreasegingpHglevelgofgthegwater.
10. Whichgtypegofgmediumgwouldgbegthegbestgchoicegwhengshippinggagsamplegofgba
cteriagfromgagclinicgtogaglaboratorygforgtesting?
, 11. Thegsimplegmicroscopesgusedgbygthegearliestgpractitionersgofgmicroscopygc
ontainedgwhichgofgthegfollowing?
12. Substancesgthatgreleasegionsgwhengdissolvedgingwatergandgconductgelectricitygar
e .
a.g covalent
b.gnonpolar
c.g electrons
d.g electrolytes
e.g solvents
13. Hydrogengbonds
14. Ag reducingg mediumg contains
a.gsugarsgthatgcangbegfermented.
b.gextragoxygen.
c.ghemoglobin,gvitamins,gorgotherggrowthgfactors.
d.gsubstancesgthatg removeg oxygen.
e.ginhibitinggagents.
15. WhichgofgthegfollowinggisgNOTgagrecentgdiscoverygthatghasghadgaghugegimpactgo
ngthegunderstandinggofgmicrobiology?
a. Restrictiongenzymes
b. PCRg technique
