MICROBIOLOGY LAB FINAL (BACHOON-GCSU)
EXAM QUESTIONS WITH VERIFIED SOLUTIONS
what is the red arrow pointing to? --CORRECT ANSWER--light
source
Along with the base, used as a carrying handle for the microscope --
CORRECT ANSWER--Arm function
what is the red arrow pointing to? --CORRECT ANSWER--arm
Platform which the specimen rests on --CORRECT ANSWER--Stage
function
what is the red arrow pointing to? --CORRECT ANSWER--stage
Controls the distance between the specimen and the stage; coarse
focus is used with scan and low power objective lenses; fine focus is
used with high dry and oil immersion objective lenses --CORRECT
ANSWER--Coarse and fine focus adjustment knobs function
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,what is the red arrow pointing to? --CORRECT ANSWER--course
focus adjustment knob
what is the red arrow pointing to? --CORRECT ANSWER--fine focus
adjustment knob
allow the movement of the stage from left to right and forward to
backward --CORRECT ANSWER--mechanical stage adjusters
what is the pink arrow pointing to? --CORRECT ANSWER--
mechanical stage adjusters
collects and concentrates light emitted from the light sources into a
tight beam before passing it through the specimen --CORRECT
ANSWER--condensor
what is the red arrow pointing to? --CORRECT ANSWER--
condensor
located within the condenser; tightens or widens the beam of light
emitted from the condenser --CORRECT ANSWER--iris diaphragm
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,what is the black arrow pointing to? --CORRECT ANSWER--iris
diaphragm
controls the amount of light emitted from the source bulb --
CORRECT ANSWER--light intensity adjuster
what is the red arrow pointing to? --CORRECT ANSWER--light
intensity adjuster
serve to magnify the specimen in part --CORRECT ANSWER--
objective lenses
what is the red arrow pointing to? --CORRECT ANSWER--objective
lenses
What's the first thing you do when you walk into the lab? --
CORRECT ANSWER--Disinfect the lab table
When do you wash your hands? --CORRECT ANSWER--before
AND after lab
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, ALWAYS _____ the bottom of the dishes --CORRECT ANSWER--
label
Inoculating loop or needle is sterilized by --CORRECT ANSWER--
flaming (heating until red hot)
Before you get a microbe from the tube you must heat up your
inoculating loop, then put the tube over the fire, dip the loop in, then
put the tube back over the fire. This is done to keep anything from
becoming --CORRECT ANSWER--contaminated
Why is it important to use aseptic techniques when inoculating tubes
and media plates --CORRECT ANSWER--To prevent contamination
of cultures and media from microbes in the environment
Used in carrying the microscope; houses the light source --CORRECT
ANSWER--Base function
what is the red arrow pointing to? --CORRECT ANSWER--base
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EXAM QUESTIONS WITH VERIFIED SOLUTIONS
what is the red arrow pointing to? --CORRECT ANSWER--light
source
Along with the base, used as a carrying handle for the microscope --
CORRECT ANSWER--Arm function
what is the red arrow pointing to? --CORRECT ANSWER--arm
Platform which the specimen rests on --CORRECT ANSWER--Stage
function
what is the red arrow pointing to? --CORRECT ANSWER--stage
Controls the distance between the specimen and the stage; coarse
focus is used with scan and low power objective lenses; fine focus is
used with high dry and oil immersion objective lenses --CORRECT
ANSWER--Coarse and fine focus adjustment knobs function
Page 1 of 49
,what is the red arrow pointing to? --CORRECT ANSWER--course
focus adjustment knob
what is the red arrow pointing to? --CORRECT ANSWER--fine focus
adjustment knob
allow the movement of the stage from left to right and forward to
backward --CORRECT ANSWER--mechanical stage adjusters
what is the pink arrow pointing to? --CORRECT ANSWER--
mechanical stage adjusters
collects and concentrates light emitted from the light sources into a
tight beam before passing it through the specimen --CORRECT
ANSWER--condensor
what is the red arrow pointing to? --CORRECT ANSWER--
condensor
located within the condenser; tightens or widens the beam of light
emitted from the condenser --CORRECT ANSWER--iris diaphragm
Page 2 of 49
,what is the black arrow pointing to? --CORRECT ANSWER--iris
diaphragm
controls the amount of light emitted from the source bulb --
CORRECT ANSWER--light intensity adjuster
what is the red arrow pointing to? --CORRECT ANSWER--light
intensity adjuster
serve to magnify the specimen in part --CORRECT ANSWER--
objective lenses
what is the red arrow pointing to? --CORRECT ANSWER--objective
lenses
What's the first thing you do when you walk into the lab? --
CORRECT ANSWER--Disinfect the lab table
When do you wash your hands? --CORRECT ANSWER--before
AND after lab
Page 3 of 49
, ALWAYS _____ the bottom of the dishes --CORRECT ANSWER--
label
Inoculating loop or needle is sterilized by --CORRECT ANSWER--
flaming (heating until red hot)
Before you get a microbe from the tube you must heat up your
inoculating loop, then put the tube over the fire, dip the loop in, then
put the tube back over the fire. This is done to keep anything from
becoming --CORRECT ANSWER--contaminated
Why is it important to use aseptic techniques when inoculating tubes
and media plates --CORRECT ANSWER--To prevent contamination
of cultures and media from microbes in the environment
Used in carrying the microscope; houses the light source --CORRECT
ANSWER--Base function
what is the red arrow pointing to? --CORRECT ANSWER--base
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