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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Chapter 1, Problem 3CT
Summary Introduction
To write:
The advantage of low power objective over the oil-immersion objective for viewing
Introduction:
Microscopy is a technique of observing an object under a microscope that is not observable with naked eyes. The types of microscopy include scanning probe microscopy, electron microscopy, and optical microscopy. Optical microscopy uses light for illuminating and lenses to magnify the sample.
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Chapter 1 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
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- How can you easily find specimens at higher magnifications after you found them at the lower magnification?arrow_forwardIf you were trying to visualize living organisms without staining, which type of microscopy would be best to utilize? O 1) brightfield O 2) TEM 3) fluorescent O 4) confocal O 5) phase contrastarrow_forwardWhat are the ways you can control the amount of light passing through your specimen? One way is increasing the transparency of glass lid and also directing the light source directly to specimenarrow_forward
- Explain why parfocal imaging is important, especially when viewing very small specimens using the high power objective.arrow_forwardDoes the specimen on the slide change size as you change objectives and get closer or farther out? If you saw a bug on a slide, using your microscope at the 10x objective and it filled the field of view, would you see more or less of that bug if you changed the objective to the 45x?arrow_forwardIndicate which objective lens he would use to clearly visualize: a) Protists:b) Fungi:c) Bacteria:arrow_forward
- Trace the path of light from the light source through the microscope in the correct order: O condenser, ocular lens, objective lens, specimen ocular lens, objective lens, specimen, condenser condenser, objective lens, specimen, ocular lens condenser, specimen, objective lens, ocular lens O ocular lens, specimen, objective lens, condenserarrow_forwardWhat's the importance of objective and ocular magnification in onserving a specimen under a microscope?arrow_forwardList four specimens that are better viewed through a dissecting scope than a compound light microscope Explain why parfocal imaging is important, especially when viewing very small specimens using the high power objective.arrow_forward
- Rowena was tasked to measure the actual magnification of her specimen mounted on a slide without drawing or taking a photomicrograph. Which type of microscope should she use? Why? How does it help her get the actual magnification?arrow_forwardDiscuss the concept of spectrophotometry, colorimetery, and turbidimetry. Maximum of 150 wordsarrow_forwardThe girl is focusing a slide and she is moving the stage up toward the slide. a) What has happened to the slide? b) Is this the proper way to focus? c) Should you focus by moving stage up or down? d) What happens to a microscope i' place at the edge? e) What should you do to prevent this from happening.arrow_forward
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