506780
Description
Quiz by gina_evans0312, updated more than 1 year ago
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Created by gina_evans0312
over 10 years ago
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Question 1
Question
Which of the following media is most enriched?
Answer
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Nutrient Agar
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Blood Agar
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Chocolate Agar
Question 2
Question
Only nutrient agar allows the growth of fastidious bacteria
Answer
- True
- False
Question 3
Question
Name the two dyes used for gram staining
Answer
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Crystal violet
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Conicheal
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Safranine
Question 4
Question
Iodine is used to darken the crystal violet
Answer
- True
- False
Question 5
Question
The Gram -ve bacteria lose dye when exposed to decoloriser
Answer
- True
- False
Question 6
Question
The peptidoglycan layer is sandwiched between two membranes- what bacteria am I describing?
Answer
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Gram +ve
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Gram -ve
Question 7
Question
Why, when streaking, do you take samples from each previous streak and sterilise inbetween?
Answer
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To reduce the no of bacteria on the loop each time- eventually you'll be spreading single bacteria, which grow to colonies
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I can't think of an answer that might fool you, so yeah, just leaving this...
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