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Concept explainers
(a)
To determine:
The type of the microscope that you use to study (a) the change in shape of a living white blood cell and (b) the details of surface texture of a hair.
Introduction:
Microscope is an instrument that is used to see objects that are not visible from the naked eyes. It was first used by scientist of Renaissance. There are three important parameters in microscopy which are magnification, resolution and contrast.
To determine: The type of the microscope that you use to study the change in shape of a living white blood cell.
(b)
To determine: The type of the microscope that you use to study the details of surface texture of a hair.
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Chapter 4 Solutions
Campbell Biology in Focus; Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology in Focus (2nd Edition)
- Phase contrast microscopy - Human Cheek Cells a. b. What is the basic principle of image formation using this microscopy technique? What can be observed and concluded from the image of the specimen?arrow_forwarda) Briefly discuss the limits of resolution in optical microscopy? b) What is empty magnification? c) What are chromatic and spherical aberration?arrow_forwardWhat is the function of staining in light microscopy?arrow_forward
- What limitation applies to most forms of electron microscopy?arrow_forwardYou were interested to see a human cell under the microscope, so you went to the lab to look for a dye to stain human cells you looked for a stain called …………………………….arrow_forwardThis type of microscope is use to study the detail in samples. It produces a three-dimensional image of the specimen.(a). Compound Light Microscope(b). Scanning Electron Microscope(c). Transmission Electron Microscope(d). Dissection Microscopearrow_forward
- 3D dimensionality is a limitation of the compound microscope. Depth of field, DOF, describes dimensionality form top to bottom and can be observed with colored cross threads. Observe the crossed thread slide on low power (4x), then on medium power (10x), then on high power (40x objective magnification). Which crossed fiber is on top? How do you know?arrow_forward1.Why is wavelenth the main limiting factor on limit of resoltuin in light microscopy? 2.Assuming that all other variables remain constant, explain why light of shorter wavelengths will produce a clearer image that light of longer wavelenths. 3. Why aren't the magnification of both ocular lenses of a binocular microscope used to calculate total magnification?arrow_forwarda) Describe the technique Of Atomic Force Microscopy under the following headings: (i) Basic principle of AFM and overview of operations (ii) Modes of A FMarrow_forward
- what type of microscope would you use to distinguish between white cells that are characterized by the color of their granules. Why?arrow_forwardWhich type of microscopy allows us to clearly view the internal contents of cell structures smaller than 200 nm?arrow_forwardWhy is methylene blue used to stain cells? What does it bind to? Which type of microscopy should you use to visualize cells stained with methylene blue?arrow_forward
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