MBK – Lab Report Name: ____ Section: ___ Module 1‚ Experiment 1: Observing Bacteria and Blood (No microscope needed for this lab) Questions: A. List the following parts of the microscope‚ AND Briefly describe the function of each part. A. Eyepiece – transmits and magnifies the image from the objective lens to the eye. B. Main tube – moves vertically for focusing C. Nosepiece– holds the objective lenses and rotates them. D. Objective lens - Objective lenses provide
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Individual Work 1 What was Francis Henry Galton’s major contribution to forensic science? Galton was not the first contributor to the idea of fingerprinting but he was the first contributor to follow through with making it a successful new way of identification. Alphonse Bertillon came up with a systematic way of identifying persons by taking measurements of different parts of their bodies. This procedure was used for nearly 20 years before being replaced by fingerprinting. There were to other
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virus is about 100 nm in diameter and a bacterium is about 1000 nm head to tail. The tools that have allowed us to observe the previously invisible world of the nanoscale objects include special sophisticated microscopes such as the Atomic Force Microscope and the Scanning Tunneling Microscope.
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classified as Class 1 by US Public Health Service/Biosafety Level 2 Review everything about the microscope and our original laboratory EXERCISE 1: USE AND CARE OF MICROSCOPE: (Covered 9.4.14 II Week 1) THE MICROSCOPE: Simple microscope early microscope; like a magnifying glass Brightfield compound microscope Most often used Base Bottom of microscope Stage Holds slide Arm Carries the microscope Body Tube Transmits the magnified image Condenser Lenses that concentrate light by focusing it
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the erratic random movement of particles in the fluid on the microscope. At Robert Brown’s time of study in the 1800s the optical capacity of the microscopes was too limiting. It was believed that Robert Brown’s studies of observation were based on the movement of pollen grains. However‚ it has been proven in this generation that Brown’s optical paper shows the movement of minute particles‚ not only pollen grains. The early microscopes comprised a magnifying component that is typically a hand-polished
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and Blood Abstract The purpose of this exercise is to gain knowledge on basic skills to correctly operate a microscope by viewing blood and bacteria through different magnifications Hypothesis This exercise will help me gain knowledge and the correct way to use a microscope. This will also help me for future observations of microbes. Methodology Properly set up microscope and made sure it was functioning properly. All lenses were wipe with lens paper and nine different slides were chosen
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Athlete’s foot can usually be diagnosed by visual inspection of the skin‚ but where the diagnosis is in doubt direct microscopy of a potassium hydroxide preparation (known as a KOH test) may help rule out other possible causes‚ such as eczema or psoriasis.[10] A KOH preparation is performed by taking skin scrapings which are covered with 10% to 20% potassium hydroxide applied to the microscope slide; after a few minutes the skin cells are degraded by the KOH and the characteristic fungal hyphae can then
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INTRODUCTION Nanotechnology has potential applications in many sectors of the American economy‚ including consumer products‚ health care‚ transportation‚ energy and agriculture. In addition‚ nanotechnology presents new opportunities to improve how we measure‚ monitor‚ manage‚ and minimize contaminants in the environment. While the U.S. Environmental Protection Agency (EPA‚ or “the Agency”) is interested in researching and developing the possible benefits of nanotechnology‚ EPA also has the
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gyMicrobiology: is a study of microorganisms (microbes‚ germs) and their activities Microorganism: An organism or a virus too small to be seen without a microscope (smaller than 0.5mm) Misconceptions of Microorganisms * All microorganisms are pathogenic (disease producing) FALSE * The majority of bacteria are harmless and beneficial TRUE Aspects of microbiology * Basic biological science * About living cell and how they work * About microbial diversity and their evolution
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POB II: Exam II Review Chapter 6: tour of the cell Microscopy: • Microscopes provide a window to the cell. • Most important tool in cytology • Resolution has improved understanding of cells. o Resolving power – the smallest distance between two objects that allows them to be seen as distinct objects. o Resolving power of the human eye is 0.1 mm • Light microscope – uses glass lenses and visible light to form a magnified image of an object. o Resolving power of about 100 nm (.0002 mm)
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