Experiment 112-5 Thin Film Interference Introduction When two waves of equal intensity combine‚ the intensity of the resulting wave can be anywhere between zero and four times the intensity of the individual waves‚ depending upon the phase difference between them. When they are in phase (the maxima coincide with maxima and the minima coincide with minima)‚ maximum intensity results. When they are exactly out of phase (the maxima of one wave coincide with the minima of the other wave)‚ the
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Cell Worksheet from Chaiken of Biology Cell wall cell membrane nucleus ribosome lysosome mitochondria cilia flagellum vacuoles chloroplasts 1. This organelle takes sunlight‚ water and carbon dioxide and can make organic food molecules and oxygen. Chloroplast 2. This organelle is constructed of cellulose and supports plant cells and prevents them from blowing up. Cellulos 3. This organelle contains enzymes for intracellular hydrolysis of food molecules. Lysosom 4. This organelle takes
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Review Guide Microscopes and Cells Test Tuesday‚ October 23 1. Be familiar with how to use light microscopes‚ and label the parts. 2. Be familiar with electron microscopes – what are the two kinds and how do they differ? 3. State the three basic tenets of cell theory. 4. Define/describe eukaryotic and prokaryotic cells‚ and know examples of each. 5. Be able to label diagrams of plant and/or animal cells. 6. Be very familiar with the structures and functions of all
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Bacterial Morphology Demonica Britt Microbiology DL1 March 23‚ 2013 Abstract This lab was performed to identify and familiarize with a microscope while precisely observing various bacterial shapes and their arrangements in different types of specimens of bacteria. The microscope parts and capabilities were clearly identified and used successfully and the bacteria were clearly illustrated showing the bacterial shapes and arrangements with all the appropriate magnification being utilized. Through
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using red blood cells‚ potato strips and three unknown solutions (A‚ B‚ C). First three slides were prepared containing RBC’s and unknown solutions A‚ B and C. A control slide was prepared only using RBC’s. After observing each slide under the microscope it was determined that unknown solution A was hypertonic because the RBC appeared to have shrunk. The RBC in unknown solution B appeared to be swollen‚ therefor‚ the tonicity of unknown solution B was hypotonic. Unknown solution C showed no change
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Animal and Plant Cell Comparison Lab By: Hamiz Jamil Daniel Levin Justin Mackeigan Arash Kamali Science 8C1 Due Date: Thursday November‚ 20th Table of Contents 1. 2. 3. 4. 5. 6. 7. 8. Background Information……………………………...page 3 Purpose………………………………………………...page 3 Hypothesis……………………………………………..page 3 Materials………………………………………………..page 4 Procedure……………………………………………....page 45 Observation/Diagrams………………………………...page 57 Conclusion……………………………………………
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Links: the microscope to a computerized spectrophotometer. Characterizes trace quantities of evidence Such as paint‚ fibers‚ inks ▫ Scanning Electron Microscope: 3d image formed by aiming a beam of electrons onto a specimen‚ then the electron emissions are based on an image shown on the closed TV circuit. Use for gun shot reused
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2. Use low concentration of caffeine so not to harm the Daphnia. 3. Place the Daphnia in the presence of pond water instead of distilled water. 4. Use the same Daphnia throughout the whole experiment and handle it with care. 5. Turn off the microscope light between observations to
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Observing Bacteria Kelli Jo Simco Microbiology Due: 2/8/13 Abstract: Microscopes are fragile instruments that must be handle with extreme caution as they can produce high quality results when observing the smallest specimens on earth. A microscope must be properly cleaned before use and storage. The different objectives allow for a range of observations. At the highest objectives‚ the resolution can easily be lost which is why the oil immersion lens is used to minimize refraction. While
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Lynes) In the 1920’s‚ the maximum magnification of a research microscope was only 2‚000 to 2‚500 X‚ so he did what he’d been trained to do; he designed and built 5 new microscopes with a range of 5‚000 to 50‚000 X. Using his own instruments‚ he was the first person to photograph the heretofore invisible life forms that traveled in and out of view‚ alive and motile. He was known to sit for 48 hours at a time‚ peering into his microscope‚ bringing a specimen into sharp focus. (Nobody had observed what
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