1 Biology 2070H - Lab #1 MICROSCOPY AND CHARACTERIZATION OF CELLS Introduction: Cells can be very difficult entities to study. They are usually very small and transparent‚ yet extremely complex. Fortunately‚ there are many tools available to the cell biologist that aid in their study. The light microscope is to this day perhaps the single most important instrument used in Cell Biology. It is used under bright field conditions to study the organization of cells in fixed and stained sections
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Lab #1 notes: The Discovery Process Types of microscopes: Dissecting: has 2 eyepieces and used for looking at a fly. Is 3D and used reflecting light Lower magnification‚ higher resolution Compound: has 1 eyepiece and is used for looking at a cross-section of a plant. 2D and uses transmitted light Higher magnification‚ lower resolution Microscope objectives include 4x‚ 10x‚ 40x‚ 100x‚ -As you move to a higher power‚ your field of view decreases -Parcentric: whatever is in the middle of
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The Observation of organism in a drop of pond water (Paramecium) under LPO and HPO Compound Microscope Doreenda A. Sabao BS Biology I-A .Lab 1 August 01‚ 2013 INTODUCTION A pond is a body of freshwater smaller than a lake. Ponds are naturally formed by a depression in the ground filling and retaining water. Streams or spring water is usually fed into these bodies. They can also be man-made ponds which can be created by damming a stream‚ digging a hole. Ponds are usually
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Goodsell Microscope The Goodsell microscope summarizes bureaucracy with the opinions of the public. Goodsell microscope emphasis organizational effectiveness within the bureaucracy. With the microscope Goodsell breaks down the business side‚ and highlights that private sector are more effective than public sectors. As public servant‚ our duties align with the well-being of the people in addition to having the public interest in my mind when implementing policies and procedures. According to Goodsell
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Brownian motion Journal report by Kimberly Stacey Rosas Anatomy and Physiology Lab I 2101.01 Introduction: What is the Brownian motion? The Brownian motion is the erratic random movement of microscopic particles in a fluid as a result of continuous bombardment from molecules of the surrounding medium. Robert Brown was a distinguished microscopist and botanist in the 1800s. Brown discovered the naked ovule of the gymnosperemae which is the most exacting piece of microscopical investigation
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Hello ladies and gentlemen of the jury my name is Brittany Marroquin. I am a hair analysis expert. I am here today to determine whether or not the suspects are responsible for the crime that has been committed. I have here the lab results depicting the crime scene. The trace evidence (small but measurable amounts of physical or biological material found at a crime scene) found at the crime scene was the killers hair‚ and the victim’s own hair to exclude any hair samples found similar to the victim
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Trace Evidence Trace evidence is an important part of a team in solving crimes in forensic investigations. According to Edmond Locard‚ there is specific that no matter wherever people interact with their environment or is physically involved in a crime often leaves something at or something away from the scene. Those in this category of evidence include many diverse types of macroscopic or microscopic materials that certain examples are easily visible to our “naked eye”. The subject is broad and
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differentiating shape and structure through utilization of microscope. Procedure – Instructions followed as per procedure‚ specimens viewed through v-scope‚ using 10x‚ 20x‚ and 40x stained wet-mount. Observations compared amongst one another from cd-rom. Spirillum bacteria Bacillus Cheek Swab Yeast Analysis – Using the virtual microscope‚ the images seemed to be more clear and concise. Using the light microscope again for another experiment has increased my confidence
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are the advantages and disadvantages of the different types of light and electron microscopes discussed in Chapter 3 that are used to study microorganisms? Focus your response in terms of the following parameters The disadvantage of using a light microscope is its inability to magnify a specimen as great as an electron microscope. An electron microscope can magnify up to 500‚000 times‚ whereas‚ a light microscope can only magnify an object up to 2000 times. The resolving power or resolving ability
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Botany Lab Introduction to Microscope Circa 1000 AD. = the first vision aid was invented (inventor unknown) called a reading stone. Circa 1284= Italian‚ Salvino D’ Armante is credited inventing the first bearable eye glass. 1590= two dutch eye glass makers‚ Zaccharias Janssen and Hans Janssen experimented with multiple lenses. 1665= English Physicist‚ Robert Hooke looked at a silver of cork through a microscope lens and noticed some “pores” or “cells”. 1674= Anton Van Leeuwenhoek built
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