1|Page
Bio 211 Exam 1 ACTUAL EXAM/TEST QUESTIONS AND
100% VERIFIED ANSWERS| A+
GRADE(100%Guarantee Pass)
135/10-3 (present answer in scientific notation) - . . ANSWER ✓✓
1.35x10
A false positve (Gram- stains purple)? - . . ANSWER ✓✓ Smear
of cells too thick
Decolorization step too short
A procaryote has - . . ANSWER ✓✓ A single circular
chromosome floating in the cytoplasm, 70 ribosomes, a cell
membrane
A V Leeuwenhoek - . . ANSWER ✓✓ -Father of Protozoology and
Bacteriology
- First to discover "animalcules" bacteria, protozo
- grinded lenses, created the magnification.
Araceli has been diagnosed with a UTI. (urinary tract infection) - .
. ANSWER ✓✓ E. Coli
,2|Page
Archaea - . . ANSWER ✓✓ extremophiles( high/low temps,high/
low pH), methanogens(produce methane under anoxic
conditions)
archea - . . ANSWER ✓✓ individuals in this group can live in
extreme conditions, produce gas, and have psudopeptidoglycan
As a cell size increases, the surface to volume ratio
_____________. - . . ANSWER ✓✓ decreases
As cell size increases, the surface to volume ratio __________ - . .
ANSWER ✓✓ decreases
As magnification increases, d ___1___, and working distance
_____2_________. - . . ANSWER ✓✓ 1. decreases
2. decreases
as magnification increases, d __1____, and working distance
___2___. - . . ANSWER ✓✓ 1:decreases
2:decreases
As wavelength decreases, resolving power _______1.___ and
resolution ____2______ - . . ANSWER ✓✓ 1. decreases
2. increases
,3|Page
as wavelength decreases, resolving power (d) __1__, and
resolution (clarity) __2__. - . . ANSWER ✓✓ 1: decreases
2: increases
auxillary lens - . . ANSWER ✓✓ corrective lens
auxilluary lens - . . ANSWER ✓✓ corrects for abbreviations in
the condenser lens
BAB agar contains lots of nutrients so all bacteria will grow, and
allows one to macroscopically identify certain types of bacteria
based upon color changes in the media around their colonies.
This media is: - . . ANSWER ✓✓ Enriched and differential
Bacillus anthracis - . . ANSWER ✓✓ anthrax (spores on body).
Bacitracin - . . ANSWER ✓✓ deactivates bactoprenol; prevents
cell wall synthesis by inhibiting bactoprenol; Prevents
peptidoglycans from traveling across the cell membrane/stops
the transfer of the "building block"
Bacitracin - . . ANSWER ✓✓ inhibits bactoprenol, and in so doing,
prevents the transport
, 4|Page
of the NAG-NAM( +5aa) precursor building block through the cell
membrane to the outside of the cell
Bacitracin inhibits - . . ANSWER ✓✓ bactoprenol, and in so doing,
prevents the transport of the NAG-NAM( +5aa) precursor
building block through the cell membrane to the outside of the
cell.
Borrelia Burgdorferi - . . ANSWER ✓✓ made of periplasmic
flagella, consequently motility,
are critical not only for optimal survival in ticks but also for
infection of
the mammalian host by the arthropod tick vector
bright field - . . ANSWER ✓✓ stain for contrast
brightfield - . . ANSWER ✓✓ simple vs. differential stains; stain
for contrast
Can you a see a coccus that is 0.5 um wide?
that is 2.0 um wide?
that is 3.0 um wide? - . . ANSWER ✓✓ no
yes
yes
Bio 211 Exam 1 ACTUAL EXAM/TEST QUESTIONS AND
100% VERIFIED ANSWERS| A+
GRADE(100%Guarantee Pass)
135/10-3 (present answer in scientific notation) - . . ANSWER ✓✓
1.35x10
A false positve (Gram- stains purple)? - . . ANSWER ✓✓ Smear
of cells too thick
Decolorization step too short
A procaryote has - . . ANSWER ✓✓ A single circular
chromosome floating in the cytoplasm, 70 ribosomes, a cell
membrane
A V Leeuwenhoek - . . ANSWER ✓✓ -Father of Protozoology and
Bacteriology
- First to discover "animalcules" bacteria, protozo
- grinded lenses, created the magnification.
Araceli has been diagnosed with a UTI. (urinary tract infection) - .
. ANSWER ✓✓ E. Coli
,2|Page
Archaea - . . ANSWER ✓✓ extremophiles( high/low temps,high/
low pH), methanogens(produce methane under anoxic
conditions)
archea - . . ANSWER ✓✓ individuals in this group can live in
extreme conditions, produce gas, and have psudopeptidoglycan
As a cell size increases, the surface to volume ratio
_____________. - . . ANSWER ✓✓ decreases
As cell size increases, the surface to volume ratio __________ - . .
ANSWER ✓✓ decreases
As magnification increases, d ___1___, and working distance
_____2_________. - . . ANSWER ✓✓ 1. decreases
2. decreases
as magnification increases, d __1____, and working distance
___2___. - . . ANSWER ✓✓ 1:decreases
2:decreases
As wavelength decreases, resolving power _______1.___ and
resolution ____2______ - . . ANSWER ✓✓ 1. decreases
2. increases
,3|Page
as wavelength decreases, resolving power (d) __1__, and
resolution (clarity) __2__. - . . ANSWER ✓✓ 1: decreases
2: increases
auxillary lens - . . ANSWER ✓✓ corrective lens
auxilluary lens - . . ANSWER ✓✓ corrects for abbreviations in
the condenser lens
BAB agar contains lots of nutrients so all bacteria will grow, and
allows one to macroscopically identify certain types of bacteria
based upon color changes in the media around their colonies.
This media is: - . . ANSWER ✓✓ Enriched and differential
Bacillus anthracis - . . ANSWER ✓✓ anthrax (spores on body).
Bacitracin - . . ANSWER ✓✓ deactivates bactoprenol; prevents
cell wall synthesis by inhibiting bactoprenol; Prevents
peptidoglycans from traveling across the cell membrane/stops
the transfer of the "building block"
Bacitracin - . . ANSWER ✓✓ inhibits bactoprenol, and in so doing,
prevents the transport
, 4|Page
of the NAG-NAM( +5aa) precursor building block through the cell
membrane to the outside of the cell
Bacitracin inhibits - . . ANSWER ✓✓ bactoprenol, and in so doing,
prevents the transport of the NAG-NAM( +5aa) precursor
building block through the cell membrane to the outside of the
cell.
Borrelia Burgdorferi - . . ANSWER ✓✓ made of periplasmic
flagella, consequently motility,
are critical not only for optimal survival in ticks but also for
infection of
the mammalian host by the arthropod tick vector
bright field - . . ANSWER ✓✓ stain for contrast
brightfield - . . ANSWER ✓✓ simple vs. differential stains; stain
for contrast
Can you a see a coccus that is 0.5 um wide?
that is 2.0 um wide?
that is 3.0 um wide? - . . ANSWER ✓✓ no
yes
yes
