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Microbiology Lab Quiz #1 Questions and
Answers 100% Pass
ocular lens - ✔✔demagnifies the image formed by the objective lens
body tube - ✔✔transmits the image from the objective lens to the ocular lens
objective lenses - ✔✔primary lenses that magnify the specimen
mechanical stage - ✔✔holds the microscope slide
condenser - ✔✔focuses light through specimen
diaphragm - ✔✔controls the amount of light entering the condenser
illuminator - ✔✔light source
fine focusing knob - ✔✔used for focusing the specimen; turning the know changes the distance between
the objective lens and the specimen
microscope - ✔✔
Nutrient Broth - ✔✔When agar is added it becomes a solid medium
Agar - ✔✔extract from marine red algae, has some unique properties that make it useful in culture media,
few microbes can degrade it and it remains solid
Steam sterilization/autoclaving - ✔✔common method of sterilization which uses steam under pressure
Petri Plates - ✔✔containing solid media provide a large surface area for examination of colonies
inoculated - ✔✔intentionally introduced onto nutrient agar and into nutrient broth
Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE
Microbiology Lab Quiz #1 Questions and
Answers 100% Pass
ocular lens - ✔✔demagnifies the image formed by the objective lens
body tube - ✔✔transmits the image from the objective lens to the ocular lens
objective lenses - ✔✔primary lenses that magnify the specimen
mechanical stage - ✔✔holds the microscope slide
condenser - ✔✔focuses light through specimen
diaphragm - ✔✔controls the amount of light entering the condenser
illuminator - ✔✔light source
fine focusing knob - ✔✔used for focusing the specimen; turning the know changes the distance between
the objective lens and the specimen
microscope - ✔✔
Nutrient Broth - ✔✔When agar is added it becomes a solid medium
Agar - ✔✔extract from marine red algae, has some unique properties that make it useful in culture media,
few microbes can degrade it and it remains solid
Steam sterilization/autoclaving - ✔✔common method of sterilization which uses steam under pressure
Petri Plates - ✔✔containing solid media provide a large surface area for examination of colonies
inoculated - ✔✔intentionally introduced onto nutrient agar and into nutrient broth
Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE
