Microbiology Lab Final - GCSU Bachoon || 100% Accurate
Answers.
microbes correct answers According to health care experts, infectious diseases caused by
______________ are responsible for more deaths worldwide than any other single cause.
contaminants correct answers Adequate precautions are necessary to prevent unwanted
_________________ from getting in or on experimental tubes or plates.
Flame the inoculating loop correct answers What is the first step of aseptic technique?
mix up organisms in culture correct answers What is the second step of aseptic technique?
flame the mouth of the tube correct answers What is the third step of aseptic technique?
remove organisms from tube using the inoculating loop. correct answers What is the fourth step
of aseptic technique?
remove loop from culture and flame the mouth of the tube and close the tube correct answers
What is the fifth step of aseptic technique?
transfer the loopful of bacteria to a test tube or Petri plate correct answers What is the 6th step of
aseptic technique?
After transferring, flame the loop correct answers What is the seventh step of aseptic technique?
E. coli correct answers What bacteria did we use in the Aseptic Technique lab (Exercise 2)?
Base correct answers used in carrying the microscope; houses the light source
,light source correct answers provides illumination to specimen
arm correct answers along with the base, used as a carrying handle for the microscope
stage correct answers platform which the specimen rests on
course and fine adjustment knobs correct answers controls the distance between the specimen
and the stage
coarse focus correct answers is used with scan and low power objective lenses
fine focus correct answers is used with high dry and oil immersion objective lenses
mechanical stage adjusters correct answers allow the movement of the stage from left to right
and forward to backward
condenser correct answers collects and concentrates light emitted from the light sources into a
tight beam before passing it through the specimen
iris diaphragm correct answers located within the condenser; tightens or widens the beam of light
emitted from the condenser
light intensity adjuster correct answers controls the amount of light emitted from the source bulb
objective lenses correct answers serve to magnify the specimen in part
scanning power correct answers 4x magnification
, low power correct answers 10x magnification
high dry power correct answers 40x magnification
oil immersion correct answers 100x magnification
revolving nosepiece correct answers allows the parfocal exchange between objective lenses
during specimen magnification
ocular lens correct answers allows the image to be viewed; magnifies the specimen 15x; may be
monocular or binocular
refraction of light correct answers __________________ is minimized by the proper adjustment
of the microscope parts and through the use of immersion oil.
high correct answers The condenser should be raised as _____________ as possible to minimize
loss of light as the rays pass from the glass of the lens to the glass of the slide on which
specimens are mounted.
wipe oil off of the microscope correct answers What do you do after using the oil immersion
lens?
red correct answers Gram negative cells stain ________________.
purple correct answers Gram positive cells stain ________________.
Crystal Violet correct answers What is the first stain used in a Gram stain?
Answers.
microbes correct answers According to health care experts, infectious diseases caused by
______________ are responsible for more deaths worldwide than any other single cause.
contaminants correct answers Adequate precautions are necessary to prevent unwanted
_________________ from getting in or on experimental tubes or plates.
Flame the inoculating loop correct answers What is the first step of aseptic technique?
mix up organisms in culture correct answers What is the second step of aseptic technique?
flame the mouth of the tube correct answers What is the third step of aseptic technique?
remove organisms from tube using the inoculating loop. correct answers What is the fourth step
of aseptic technique?
remove loop from culture and flame the mouth of the tube and close the tube correct answers
What is the fifth step of aseptic technique?
transfer the loopful of bacteria to a test tube or Petri plate correct answers What is the 6th step of
aseptic technique?
After transferring, flame the loop correct answers What is the seventh step of aseptic technique?
E. coli correct answers What bacteria did we use in the Aseptic Technique lab (Exercise 2)?
Base correct answers used in carrying the microscope; houses the light source
,light source correct answers provides illumination to specimen
arm correct answers along with the base, used as a carrying handle for the microscope
stage correct answers platform which the specimen rests on
course and fine adjustment knobs correct answers controls the distance between the specimen
and the stage
coarse focus correct answers is used with scan and low power objective lenses
fine focus correct answers is used with high dry and oil immersion objective lenses
mechanical stage adjusters correct answers allow the movement of the stage from left to right
and forward to backward
condenser correct answers collects and concentrates light emitted from the light sources into a
tight beam before passing it through the specimen
iris diaphragm correct answers located within the condenser; tightens or widens the beam of light
emitted from the condenser
light intensity adjuster correct answers controls the amount of light emitted from the source bulb
objective lenses correct answers serve to magnify the specimen in part
scanning power correct answers 4x magnification
, low power correct answers 10x magnification
high dry power correct answers 40x magnification
oil immersion correct answers 100x magnification
revolving nosepiece correct answers allows the parfocal exchange between objective lenses
during specimen magnification
ocular lens correct answers allows the image to be viewed; magnifies the specimen 15x; may be
monocular or binocular
refraction of light correct answers __________________ is minimized by the proper adjustment
of the microscope parts and through the use of immersion oil.
high correct answers The condenser should be raised as _____________ as possible to minimize
loss of light as the rays pass from the glass of the lens to the glass of the slide on which
specimens are mounted.
wipe oil off of the microscope correct answers What do you do after using the oil immersion
lens?
red correct answers Gram negative cells stain ________________.
purple correct answers Gram positive cells stain ________________.
Crystal Violet correct answers What is the first stain used in a Gram stain?
