1. Which would be the best choice for viewing internal structures of a living pr

Question

1. Which would be the best choice for viewing internal structures of a living protist such as a Paramecium? (My book says darkfield, but this is not a choice)

2. Which type of microscope is especially useful for viewing thick structures such as biofilms?

3. What type of microscope would you used to view thin sections of a fixed bacterial sample?

4. What would you use to view a Gram-stained bacterial smear?

Choices:

a. a transmission electron microscope

b. a scanning electron microscopes

c. a phase-contrast microscope

d. a confocal scanning laser microscope

e. a brightfield microscope

Explanation / Answer

1.for viewing internal structures of a living protist such as a Paramecium use may use phase contract microscopy.

2. For viewing viewing thick structures such as biofilms we use  a confocal scanning laser microscope.

3. to view thin sections of a fixed bacterial sample we usea transmission electron microscope

4.to view a Gram-stained bacterial smear we use bright field microscopy.

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