Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 2, Problem 3CT
Why isn’t the oil immersion lens used in the hanging-drop procedure?
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Why is it necessary to use the fine adjustment knob with higher magnification?
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Chapter 2 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
Ch. 2 - What, if any, practical value do these techniques...Ch. 2 - Prob. 2QCh. 2 - Why is petroleum jelly used in the hanging-drop...Ch. 2 - Why are microorganisms hard to see in wet...Ch. 2 - Can you distinguish the prokaryotic organisms from...Ch. 2 - Why isnt the oil immersion lens used in the...Ch. 2 - Where did the organisms in the infusions come...Ch. 2 - A wet mount may be used for quick examination of...
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- If you have chosen the objective lens with 10x and the ocular lens magnification is also 10x. Then the total magnification will be 100x. True Falsearrow_forwardSal said that the microscope had a total of 400x magnification because the eye tube had a level of 10x and the objective lens had a magnification of 40x. Is sal correctarrow_forwardBetween wet mount and hanging drop slide preparations, which is more resistant to evaporation? Which works best with phase-contrast microscopy?arrow_forward
- Does the image contrast increase or decrease when closing the diaphragm during microscopy.arrow_forwardWhat part of the microscope is used to make small-scale adjustments to the height of the stage? Group of answer choices 1. fine focus 2. iris diaphragm 3. eye pieces 4. coarse focus 5. slide holder adjustmentarrow_forwardIf the ocular lens is 10x, what would be the total magnification for the following objectives lenses? 5x 17x 35xarrow_forward
- Jessica placed crystal violet ,grama's iodine and safranin reagents on her bench.Which staining procedure is she preparing for with these reagents? a)Grama's staining procedure b)simple staining procedure c)Acid -fast staining procedure d)Non -acid fast staining procedure e)Scaeffer -Fulton staining procedurearrow_forwardThe ocular lenses magnify the specimen by how much? Question 4 options: 5% 10% 15% 20%arrow_forwardIdentify that chemical mordant used in the cold method of Acid-fast staining.arrow_forward
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