Straighterline Microbiology Midterm
Exam Review Questions With Correct
Answers
Agar |is |a |complex |polysaccharide |that |comes |from |a/an |___________.
a. |green |plant
b. |fungus
c. |bacterium
d. |algae
e. |marine |invertebrate |- |Correct |Answer-d. |algae
Using |microbes |to |detoxify |a |site |contaminated |with |heavy |metals |is |an
|example |of |_________.
a. |biotechnology
b. |bioremediation
c. |decomposition
d. |immunology
e. |epidemiology |- |Correct |Answer-b. |bioremediation
The |three |physical |forms |of |laboratory |media |are |_____________.
a. |solid, |liquid, |and |gas
b. |solid, |semisolid, |and |liquid
c. |a |streak |plate, |a |pour |plate, |and |a |broth
d. |reducing, |transport, |and |enumeration |- |Correct |Answer-b. |solid,
|semisolid, |and |liquid
Which |of |the |following |is |a |traditional |human |use |of |microorganisms?
a. |baking
b. |treating |water |and |sewage
c. |mass-producing |antibiotics
d. |cleaning |up |oil |spills |- |Correct |Answer-a. |baking |bread
,Which |of |the |following |represents |a |synthesis |reaction?
a. |AB |--> |A |+ |B
b. |A |+ |B |--> |AB
c. |AB |+ |XY |--> |AY |+XB
d. |AB |+ |XY |<--> |AY |+ |XB |- |Correct |Answer-b. |A |+ |B |--> |AB
Basic |dyes |are
a. |attracted |to |the |acidic |surface |of |bacterial |cells
b. |anionic
c. |used |in |negative |staining
d. |repelled |by |cells
e. |dyes |such |as |India |ink |and |nigrosin |- |Correct |Answer-a. |attracted |to
|the |acidic |surface |of |bacterial |cells
The |type |of |microscopy |in |which |you |would |observe |brightly |illuminated
|specimens |against |a |black |background |is |__________
a. |confocal
b. |dark-field
c. |phase-contrast
d. |fluorescence
e. |electron |- |Correct |Answer-b. |dark-field
A |reducing |medium |is |used |to |culture |_________ |organisms.
a. |fastidious
b. |aerobic
c. |anaerobic
d. |pathogenic |- |Correct |Answer-c. |anaerobic
In |the |cell |cytoplasm, |molecules |of |ATP |are |a |________
a. |solute
b. |solvent |- |Correct |Answer-a. |solute
, A |diagram |of |the |three |domains |(Bacteria, |Archaea, |Eukarya)
|proceeding |from |the |Last |Universal |Common |Ancestor |would |show
|Archaea
a. |as |the |original |cells |from |which |the |others |derived
b. |branching |off |the |domain |Eukarya
c. |branching |off |of |the |domain |Bacteria |- |Correct |Answer-b. |branching |off
|the |domain |Eukarya
In |the |experiments |constructed |by |Pasteur |to |disprove |spontaneous
|generation, |swan-necked |flasks |were |used. |Why |was |this |shape |of |flask
|used |in |this |experiment.
a. |the |glass |neck |needed |to |be |open |to |the |air, |yet |constructed |so |that
|bacteria |would |settle |in |the |lowest |part |of |the |flask
b. |these |flask |shapes |were |the |easiest |and |cheapest |to |produce
c. |the |shape |of |the |glass |neck |allowed |the |bacteria |into |the |flask |and
|then |into |the |media, |but |air |could |not |enter
d. |Because |the |glass |necks |were |stretched |out, |the |heat |used |to
|sterilize |the |medium |inside |of |the |flask |could |not |kill |the |bacteria |in |the
|neck |- |Correct |Answer-a. |the |glass |neck |needed |to |be |open |to |the |air,
|yet |constructed |so |that |bacteria |would |settle |in |the |lowest |part |of |the
|flask
Atoms |that |gain |or |lose |electrons |become |charged |particles
|called____________
a. |cations
b. |anions
c. |ions
d. |isotopes |- |Correct |Answer-c. |ions
The |three |cell |types |discussed, |eukaryotes, |archaea, |and |bacteria, |all
|derived |from |
a. |the |last |universal |common |ancestor
b. |photosynthetic |bacteria
c. |archaea
Exam Review Questions With Correct
Answers
Agar |is |a |complex |polysaccharide |that |comes |from |a/an |___________.
a. |green |plant
b. |fungus
c. |bacterium
d. |algae
e. |marine |invertebrate |- |Correct |Answer-d. |algae
Using |microbes |to |detoxify |a |site |contaminated |with |heavy |metals |is |an
|example |of |_________.
a. |biotechnology
b. |bioremediation
c. |decomposition
d. |immunology
e. |epidemiology |- |Correct |Answer-b. |bioremediation
The |three |physical |forms |of |laboratory |media |are |_____________.
a. |solid, |liquid, |and |gas
b. |solid, |semisolid, |and |liquid
c. |a |streak |plate, |a |pour |plate, |and |a |broth
d. |reducing, |transport, |and |enumeration |- |Correct |Answer-b. |solid,
|semisolid, |and |liquid
Which |of |the |following |is |a |traditional |human |use |of |microorganisms?
a. |baking
b. |treating |water |and |sewage
c. |mass-producing |antibiotics
d. |cleaning |up |oil |spills |- |Correct |Answer-a. |baking |bread
,Which |of |the |following |represents |a |synthesis |reaction?
a. |AB |--> |A |+ |B
b. |A |+ |B |--> |AB
c. |AB |+ |XY |--> |AY |+XB
d. |AB |+ |XY |<--> |AY |+ |XB |- |Correct |Answer-b. |A |+ |B |--> |AB
Basic |dyes |are
a. |attracted |to |the |acidic |surface |of |bacterial |cells
b. |anionic
c. |used |in |negative |staining
d. |repelled |by |cells
e. |dyes |such |as |India |ink |and |nigrosin |- |Correct |Answer-a. |attracted |to
|the |acidic |surface |of |bacterial |cells
The |type |of |microscopy |in |which |you |would |observe |brightly |illuminated
|specimens |against |a |black |background |is |__________
a. |confocal
b. |dark-field
c. |phase-contrast
d. |fluorescence
e. |electron |- |Correct |Answer-b. |dark-field
A |reducing |medium |is |used |to |culture |_________ |organisms.
a. |fastidious
b. |aerobic
c. |anaerobic
d. |pathogenic |- |Correct |Answer-c. |anaerobic
In |the |cell |cytoplasm, |molecules |of |ATP |are |a |________
a. |solute
b. |solvent |- |Correct |Answer-a. |solute
, A |diagram |of |the |three |domains |(Bacteria, |Archaea, |Eukarya)
|proceeding |from |the |Last |Universal |Common |Ancestor |would |show
|Archaea
a. |as |the |original |cells |from |which |the |others |derived
b. |branching |off |the |domain |Eukarya
c. |branching |off |of |the |domain |Bacteria |- |Correct |Answer-b. |branching |off
|the |domain |Eukarya
In |the |experiments |constructed |by |Pasteur |to |disprove |spontaneous
|generation, |swan-necked |flasks |were |used. |Why |was |this |shape |of |flask
|used |in |this |experiment.
a. |the |glass |neck |needed |to |be |open |to |the |air, |yet |constructed |so |that
|bacteria |would |settle |in |the |lowest |part |of |the |flask
b. |these |flask |shapes |were |the |easiest |and |cheapest |to |produce
c. |the |shape |of |the |glass |neck |allowed |the |bacteria |into |the |flask |and
|then |into |the |media, |but |air |could |not |enter
d. |Because |the |glass |necks |were |stretched |out, |the |heat |used |to
|sterilize |the |medium |inside |of |the |flask |could |not |kill |the |bacteria |in |the
|neck |- |Correct |Answer-a. |the |glass |neck |needed |to |be |open |to |the |air,
|yet |constructed |so |that |bacteria |would |settle |in |the |lowest |part |of |the
|flask
Atoms |that |gain |or |lose |electrons |become |charged |particles
|called____________
a. |cations
b. |anions
c. |ions
d. |isotopes |- |Correct |Answer-c. |ions
The |three |cell |types |discussed, |eukaryotes, |archaea, |and |bacteria, |all
|derived |from |
a. |the |last |universal |common |ancestor
b. |photosynthetic |bacteria
c. |archaea
