Specific ,highly resistant, dormant structure that protect bacteria from adverse conditions is recognised as?

1. Spore
2. Endospore
3. Exospore
4. Capsule
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Answer: B
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Microorganisms size measured in ________

1. micrometer
2. nanometer
3. picometer
4. both A and B
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Answer: D
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1 micrometer =_______m

1. 1/1000
2. 1/100000
3. 1/1000000000
4. None of these
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Answer: B
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1 micrometer= _______nm

1. 10nm
2. 100nm
3. 1000nm
4. 10000nm
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Answer: C
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What does the decolorizer do in gram stain?

1. It can loosen the peptidoglycan layed
2. It can tighten the peptidoglycan layer
3. It can also dehydrate peptidoglycan layer
4. Both B and C
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Answer: D
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How much maximum magnification of electron microscope have ?

1. 1000X
2. 10000X
3. 1000000X
4. X
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Answer: C
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How much maximum magnification of compound microscope have ?

1. 1000X
2. 10000X
3. 100000X
4. 1000000X
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Answer: A
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What happens if you don't use immersion oil when using a 100X objective lens?

1. Image is more sharp
2. Image appears blurr
3. Image seem floating
4. Image is more clear
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Answer: B
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Which of the following is primary lens that magnify image?

1. Objective Lense
2. Ocular Lens
3. Eye piece lense
4. Condanser
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Answer: A
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To visualizing Bacillus endospore ,Which one of the following stain used?

1. SachaferFulton
2. Malachit Green
3. Methylene blue
4. Safranin
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Answer: A
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