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7 Cards in this Set
- Front
- Back
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Name the dyes that is commonly used in simple staining. 3
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methylene blue, basic fuchsin, crystal violet
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Are most dyes used to stain bacteria basic or acidic? Explain why you have chosen your answer.
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Most dyes used to stain bacteria are basic because the positive ions of the basic dye are attracted to the negative charge of the bacterial cells
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What is pleomorphism?
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irregularity in form or shape
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What are metachromatic granules?
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granules that appear when a cell is stained with methylene blue AND/OR masses of volutin
-they show up as red/purple masses |
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Bacteria with what shape may exhibit palisade arrangement?
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rods
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What is palisade arrangement?
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parallel arrangement of rod shaped cells
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What is simple staining useful for?
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in determining basic morphology and the presence or absence of certain kinds of granules
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