SERIES MICROBIOLOGY LAB PRACTICAL COMPLETE QUESTIONS AND CORRECT ANSWERS | GRADED AND THE LATEST SERIES

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