magnification that can be achieved by an electron microscope. * explain the need for staining samples for use in electron microscopy Lesson 2 * calculate linear magnification of an image such as photomicrograph or electron micrograph Key words * Resolution= the ability to distinguish 2 separate points as distinct from each other. * Magnification= the number of times greater an image is than the actual object itself. Light microscopes have a low resolution‚ therefore if the magnification
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experiment is to learn how to use a microscope while viewing various types of bacteria cultures. Prepared slides are used to view bacterial cultures under a microscope that would normally be invisible to the naked eye. Bacterial shapes and arrangements or morphology are observed in prepared slides and fresh yogurt culture. Purpose: The experiment is meant to determine the shapes of bacteria under different magnifications when using a microscope; 10X‚ 40X‚ and 100X. A microscope must be used to see and study
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Section: ___________________ Using the Microscope Purpose: What is the purpose of this exercise? Is there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. QUESTIONS: A. The following statements are true or false. If true‚ write a “T” on the answer line. If false‚ write a word or phrase in the blank to make the statement true. __F__ 1) The microscope lens may be cleaned with any soft tissue.
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NYLON gets its name? Write a short note paragraph on the learning outcome. Physics 1. A body of mass m is taken to the surface of the moon. What will be the mass of the body in moon. 2. Mention three disadvantages of friction between different parts of a machine. 3. A ball is thrown
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June 7‚ 2012 The Microscope Introduction: The purpose of a microscope is to see either enlarge images of small objects and or make seen what is invisible to the naked eye. We have two types of microscopes available in the lab. The dissecting microscope is designed to study objects in three dimensions at low magnification. The compound microscope is used for examining small or thinly sliced sections of objects under magnification that is higher than the dissecting microscope. In this lab we
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The microscope has been one of the greatest inventions in the history of science and has had the most impact on the course of science. Ever since the first microscope was invented in 1590‚ they have improved our knowledge in basic biology and biomedical research‚ as well as many other things‚ all of which are important. The smallest object a human can see with the naked eye is 0.2 mm‚ for example‚ algae cells. The light microscope‚ however‚ allows us to see things almost 1000 times smaller that what
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disadvantages of a light microscope and electron microscope? Some of the disadvantages of the light microscope include‚ that since it send light‚ the light waves are diffracted as they pass through the matter. Because of this‚ light microscopes can only produce clear images of objects to a magnification of about 1000 times. Another problem is that since most living cells are nearly transparent‚ you can’t see them. So you have to use dyes to stain them. The advantage of using a light microscope however is that
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Name _____________________ The Human Cheek Cell Microscope Lab Period: _____ Date: _________ Problem: What kind of tissue are you able to observe from your cheek sample? Objectives: To learn the parts of and how to use the microscope. To find specimens using low‚ medium‚ and high power. To make a wet mount slide. To view your own (or your partner’s) cheek cells under the microscope. To compare plant and animal cells. Procedure of Investigation 1. Add one drop of methylene blue
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Running head: Tyco: A conglomerate under the microscope Tyco: A conglomerate under the microscope In 1960‚ Arthur Rosenburg founded Tyco when he opened a laboratory to do experimental work the United States government. It wasn’t until 1962‚ Rosenburg incorporated the business as Tyco Laboratories. The company’s focus was on energy conservation products and tech materials science for commercial use. In September 1964 Tyco went public and began its acquisition of other companies to enlarge
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Unit II Test Review Chapter 4 BB Notes Cells Under the Microscope Cells are microscopic in size. Although a light microscope allows you to see cells‚ it cannot make out the detail that an electron microscope can. The overall size of a cell is regulated by the surface-area-to-volume ratio. 4.2 The Plasma Membrane The plasma membrane of both prokaryotes and eukaryotes is a phospholipid bilayer. The phospholipid bilayer regulates the passage of molecules and ions into and out of the cell. The
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