Microbiology Chapter 3: Observing Microorganisms Through a Microscope Quiz

Which of the following is NOT a kind of staining technique?

What is the purpose of fixing a slide in microbiology?

What is it called when colorless bacteria are prepared against a colored background?

In the Gram stain, what is the function of the mordant?

Which dye is commonly used to stain flagella in microbiology?

What is the function of the diaphragm on a compound microscope?

What is the function of the ocular lens in microscopy?

Which part of the microscope measures the light-bending ability of a medium?

In microscopy, what does the resolution refer to?

What would happen if you adjust the diaphragm to its smallest opening on a compound microscope?

What effect does changing the refractive index of a medium have on microscopy?

If the ocular lens has a high magnification power, what impact does this have on the overall magnification in microscopy?

Why is it important to properly clean and maintain microscope lenses regularly?

Which microscope illuminates specimens with blue light and produces three-dimensional images?

What microscope forms an image from two sets of light rays, one from the light source and the other diffracted from a structure in the specimen?

Which microscope uses a metal and diamond probe to produce a three-dimensional image?

What type of microscopes illuminates specimens with blue light and produces three-dimensional images?

Which microscope utilizes a technique where only the scattered light reaches the objective lens to visualize unstained specimens?

What microscope would be most useful in observing fine structures like cell organelles?

Which type of microscopy is commonly used for live-cell imaging due to its ability to provide optical sections of specimens?

Microscopy that is useful for viewing transparent specimens without staining?

Which microscope is best suited for studying the surface structures of intact cells and viruses?

In transmission electron microscopy, where is the specimen typically placed?

Which microscope is valuable for examining different layers of specimens and commonly involves shadow casting?

What is the primary application of a phase-contrast microscope?

Which microscope is most suitable for detailed examination of the three-dimensional surface characteristics of a specimen?

What distinguishes a darkfield microscope from other types when observing specimens?

How does a scanning electron microscope differ from a transmission electron microscope?

What advantage does a phase-contrast microscope offer when examining transparent samples?

How are flagella stained?

What stain is used to visualize capsules?

Which staining method is employed to observe endospores?

At the completion of the Gram staining process, what color are gram-negative bacteria?

How does Mycobacterium leprae appear after staining with an acid-fast stain?

What color are gram-negative bacteria at the completion of the Gram staining process?

Which type of staining is NOT used to visualize capsules?

What color are gram-positive bacteria at the end of Gram staining?