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Multiple Choice



This activity contains 20 questions.

Question 1
1
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All of the following are types of light microscopy except:
 
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Question 2
2
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Which of the following types of microscopy is most useful for viewing the internal structures of unstained specimens?
 
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Question 3
3
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Which of the following types of microscopy is used to study living cells attached to surfaces, such as cancer cells and bacterial biofilms?
 
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Question 4
4
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Which type of light microscopy is used to visualize stained specimens?
 
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Question 5
5
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Which type of microscopy is used to identify pathogenic bacteria in clinical specimens?
 
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Question 6
6
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Resolution is great when using an electron microscope because the _____________ of the electron beam is much less than that of visible light.
 
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Question 7
7
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All of the following are true for both TEM and SEM except:
 
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Question 8
8
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A three-dimensional image of a bacterium is achieved by using
 
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Question 9
9
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Which type of microscope uses a metal and diamond probe that is gently forced down along the surface of a specimen?
 
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Question 10
10
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Bacterial cells have an overall negative charge on their surface. If a bacterial smear is stained by a pink, acidic, water-soluble stain and then washed with water, which of the following describes the result?
 
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Question 11
11
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Which of the following is not accomplished by fixing cells to a slide?
 
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Question 12
12
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A simple stain
 
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Question 13
13
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In a negative staining procedure, the bacterial cells would be
 
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Question 14
14
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In the Gram stain, crystal violet is the
 
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Question 15
15
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In the Gram stain, if the decolorizing step is deleted, gram-negative cells will appear ____at the completion of the staining procedure.
 
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Question 16
16
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In the Gram stain, crystal violet remains in gram-positive cells after treatment with alcohol because crystal violet-iodine (CV-I) complexes are trapped
 
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Question 17
17
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Acid-fast Mycobacteria are distinguished from non-acid fast bacteria by the presence of
 
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Question 18
18
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In the capsule stain using India ink, capsules are distinguished as _________surrounding cells.
 
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Question 19
19
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In the Gram-stain procedure, a clear oval in the center of a cell could indicate:
 
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Question 20
20
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Which is common to the Gram stain and acid-fast stain?
 
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