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Portage Learning BIOD 171 Module 3 Exam Questions And Answers, Exams of Microbiology

Florida Memorial UniversityMicrobiology

Portage Learning BIOD 171 Module 3 Exam Questions And Answers

Typology: Exams

2024/2025

Available from 05/01/2025

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Portage Learning BIOD 171 Module 3 Exam
Questions And Answers
Does phase contrast microscopy require staining? - - -
correct answer ✅No
Simple staining is used mostly for... - - -
correct answer ✅A quick observance
Simple staining uses __________ dye. - - -
correct answer ✅Positively charged
Acid fast stain is used for... - - -
correct answer ✅bacteria resistant to traditional staining; mostly for
mycobacterium tuberculosis
Resolution - - -
correct answer ✅distance between two objects at which the objects
can still be seen as separate
Contrast - - -
correct answer ✅difference in light absorbance between 2 areas
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Download Portage Learning BIOD 171 Module 3 Exam Questions And Answers and more Exams Microbiology in PDF only on Docsity!

Questions And Answers

Does phase contrast microscopy require staining? - - - correct answer ✅No Simple staining is used mostly for... - - - correct answer ✅A quick observance Simple staining uses __________ dye. - - - correct answer ✅Positively charged Acid fast stain is used for... - - - correct answer ✅bacteria resistant to traditional staining; mostly for mycobacterium tuberculosis Resolution - - - correct answer ✅distance between two objects at which the objects can still be seen as separate Contrast - - - correct answer ✅difference in light absorbance between 2 areas

Questions And Answers

Dark field microscopy light - - - correct answer ✅reflects light off of specimen at an angle Can you see intracellular structures with a dark field microscope? - -

correct answer ✅No What microscope can capture in 3-D? - - - correct answer ✅Confocal What are the two types of electron microscopes? - - - correct answer ✅transmission electron microscope (TEM) and scanning electron microscope (SEM) What is the difference between TEM and SEM? - - - correct answer ✅TEM passes through the sample, SEM reflects off the surface Gram staining was developed by - - - correct answer ✅Hans Christian Gram in 1884

Questions And Answers

What does Giesma detect? - - - correct answer ✅Blood parasites What is stained during negative staining? - - - correct answer ✅Everything but the microorganism What color does Giesma stain? What type of cell? - - - correct answer ✅Nuclei: bluish purple Cytoplasm: pink White Blood Cells What type of samples are acid-fast stains often performed on? - - - correct answer ✅Sputum The naked eye can see - - - correct answer ✅100 micrometers Cellular organelles can be as small as - - - correct answer ✅.2 micrometers

Questions And Answers

Does phase contrast need staining? - - - correct answer ✅No What is different about phase contrast microscopy compared to brightfield? - - - correct answer ✅You are able to visualize things that would otherwise be invisible; cells are highly distinguishable What type of microscopy uses lasers? - - - correct answer ✅Confocal Does electron microscopy use live or dead samples? - - - correct answer ✅Dead Does electron microscopy use fixation? - - - correct answer ✅Yes What type of microscopy are samples coated with gold or platinum? - - - correct answer ✅Electron- SEM