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Microbiology Lab Midterm Exam Study Guide: Microscopy, Staining & Culturing Techniques

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Microbiology Lab Midterm Exam Study Guide: Microscopy, Staining & Culturing Techniques

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Microbiology Lab Midterm_ Microscopy,
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Lab Midterm_ Microscopy, Staining,
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Terms in this set (26)

Occular lens 10x

Total magnification at 40x 400x

Parafocal Staying in focus from high to low, e.g.,
40x to 10x

Resolution See difference between 2 close objects

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, Microbiology Lab Midterm_ Microscopy,
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Oil immersion Increases resolution because light does
not refract; only used with 100x

Aseptic Technique Limit contamination by preventing
unwanted microorganisms from
contaminating cultures

Sterile Free of any microbial contaminants to
isolate a pure culture

Heat smears Using heat such as a flame to kill
microorganisms; pass the smears over a
flame for heat fixation

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Techniques.pdf10/20/2026,
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Uploaded on: October 20, 2026
Number of pages: 6
Written in: 2026/2027
Type: Exam (elaborations)
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