Multiple Choice
Why is heat fixation not part of the protocol for the capsule stain?
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9. Microscopes
Introduction to Staining
Struggling with Microbiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In microbiology, what is enhanced when a stain is used to make a sample?
A
Osmotic pressure
B
Contrast
C
Temperature
D
Growth rate
Verified step by step guidance1
Understand that in microbiology, staining is a technique used to make microorganisms or cellular components more visible under a microscope.
Recognize that staining does not affect physical properties like osmotic pressure, temperature, or growth rate of the sample.
Identify that the primary purpose of using a stain is to increase the difference in appearance between the specimen and the background, which is known as enhancing contrast.
Contrast allows for better visualization of structures by making them stand out more clearly against their surroundings.
Therefore, when a stain is applied, what is enhanced in the sample is the contrast, improving the ability to observe microscopic details.
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