12 Questions
What property of a microscope refers to the ability to produce separate images of closely placed objects?
Resolution
Which type of microscope forms a dark image against a brighter background?
Bright-field microscope
What is the function of the oil in a microscope?
Enhances the resolution power
What is used to improve the contrast in a microscope?
Staining the specimen
What is the total magnification of a field in a microscope if using a high power (40x) objective lens and an ocular lens with 10x magnification?
400x
Which part of a bright-field microscope holds various components such as the light source and adjustment knobs?
Base
What is the size range of most human pathogenic viruses?
20-300 nm
Which type of microorganism generally grows as hyphae?
Fungi
What is the typical diameter range of bacterial cells of medical importance?
0.2-1.5 μm
How do most fungi grow as per the text?
As hyphae
Which type of microorganism requires an electron microscope for visualization?
Viruses
What is the typical size of yeasts, a form in which some fungi grow?
4-8 μm
Explore the sizes of bacteria, viruses, and parasites in micrometers and nanometers. Understand the typical dimensions of different types of microorganisms and their relevance to medical science.
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