Microbiology Lab Practical Questions &
Answers
The microscope used in the laboratory is what type of microscope? Correct Ans-Compound
Binocular Light
The ability of a microscope to reveal fine detail is known as? Correct Ans-resolution
The 10X eyepiece used in combination with a 45X objective produces a magnification of?
Correct Ans-450X
Another name for the 100X objective lens? Correct Ans-oil immersion
when putting the microscope away, which objective should be in place? Correct Ans-low
power
What part of the microscope regulates the amount of light entering? Correct Ans-condenser
what part of the microscope is used if some focusing adjustment is needed with high power?
Correct Ans-fine adjustment
Identify the person who was first to observe microorganisms Correct Ans-Anton Van
Leeuwenhoek
, Which of the following cannot be seen with your laboratory microscope?
Bacteria, Fungi or Viruses? Correct Ans-Viruses
The primary stain used in the endospore procedure is? Correct Ans-malachite green
What color do the endospores stain? Correct Ans-green
why do you steam the endospore stain? Correct Ans-helps stain penetrate endospore wall
Another name for the endospore stain is? Correct Ans-Schaeffer Fulton Method
What counterstain is used in an endospore stain? Correct Ans-Safarin
Name 2 genera most noted for the production of endospores? Correct Ans-Bacillus and
Clostridium
An endospore is what type of cell?
vegetative or dormant? Correct Ans-dormant
The color produced which indicates an organism uses citrate as a carbon source Correct Ans-
blue - positive
Answers
The microscope used in the laboratory is what type of microscope? Correct Ans-Compound
Binocular Light
The ability of a microscope to reveal fine detail is known as? Correct Ans-resolution
The 10X eyepiece used in combination with a 45X objective produces a magnification of?
Correct Ans-450X
Another name for the 100X objective lens? Correct Ans-oil immersion
when putting the microscope away, which objective should be in place? Correct Ans-low
power
What part of the microscope regulates the amount of light entering? Correct Ans-condenser
what part of the microscope is used if some focusing adjustment is needed with high power?
Correct Ans-fine adjustment
Identify the person who was first to observe microorganisms Correct Ans-Anton Van
Leeuwenhoek
, Which of the following cannot be seen with your laboratory microscope?
Bacteria, Fungi or Viruses? Correct Ans-Viruses
The primary stain used in the endospore procedure is? Correct Ans-malachite green
What color do the endospores stain? Correct Ans-green
why do you steam the endospore stain? Correct Ans-helps stain penetrate endospore wall
Another name for the endospore stain is? Correct Ans-Schaeffer Fulton Method
What counterstain is used in an endospore stain? Correct Ans-Safarin
Name 2 genera most noted for the production of endospores? Correct Ans-Bacillus and
Clostridium
An endospore is what type of cell?
vegetative or dormant? Correct Ans-dormant
The color produced which indicates an organism uses citrate as a carbon source Correct Ans-
blue - positive
