Lab Report Problem: What does a cheek cell look like? Hypothesis: A group of cells that look like a brick wall with a possibility to see something moving. Materials: * Microscope * Tweezers * Syringe * Wet mounts(Slides and slide covers) * Toothpicks * Onion(Onion cell) * Methylene blue stain water * Water * Cheek skin(Cheek cell) Procedure: Onion Cell 1. Create a wet mount(using water‚ a syringe‚ slides and slide covers of course) 2. Use
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BIO 131 Lab #2 Drawings of Animal and Plant Cells Instructions: 1. Set up light microscope for use. Handle with care. 2. Obtain a slide of animal cells and observe first under low-power (4X)‚ then under medium power (10X)‚ then finally switch to high-power (40X). 3. Make careful observations of the structure of the cells. 4. Draw what you see under high power on a sheet of paper. Place your drawing in a circle measuring 10-15 cm. Use only pencil‚ draw neat lines‚ do not shade. The title
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TUAN AZMAR BINTI TUAN DAUD Objectives: The components of light microscope is identified. Various types of cells through light microscope is observed. Apparatus: Light microscope. Material: Leaf‚ Glass‚ Dragonfly wing‚ Fish flesh and Algae. Procedure: The component of microscope is identified and the function is stated . The sample is prepared and the prepared tissue slides using the light microscope is observed. The magnification using 4x ‚ 10x and 40x is used. The picture
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placed over the cover slip. 9) The eraser end of a pencil was then taken and the holder pressed down on the tip firmly without twisting the slide or breaking the cover slip. 10) Finally‚ once completed‚ the slide was taken to a microscope for counting. *Prior to the lab‚ two sets of onion root tips were prepared. The control group was treated with water‚ and the experimental group was treated with lectin. Bottles 1 and 3 contained the lectin treated root tips and bottles 2 and 4 contained the lectin
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Unit 1: Fundamentals of Science Assignment 5: Can you use a Microscope? Date Issued: 11/11/13 Student: Date Due: 06/12/13 Grading Criteria Task Achieved YES NO P3 Record accurately observations of different types of tissues from a light microscope 1 P8 Outline the methods by which scientific information is communicated 1 P9 Report on a scientific investigation that has been carried out 1 M4 Produce a detailed‚ correctly structured report which demonstrates
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The Microscope FEDERICO G. PINEDA M. Sc. Associate Professor III Department of Biological Sciences‚ College of Arts and Sciences Central Luzon State University‚ Science city of Muñoz‚ Nueva Ecija The History • Many people experimented with making microscopes • Was the microscope originally made by accident? (Most people were creating telescopes) • The first microscope was 6 feet long!!! • The Greeks & Romans used “lenses” to magnify objects over 1000 years ago. The History
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living maggots. The advancement of technology in the 1660’s and notably by Hooke through the microscope helps disprove traditional understanding of cell theory. The new theory states that information about cells‚ found in DNA are passed on from cell division. This understanding in the modern cell theory can be supported by the new understanding to the example already outlined. As the new technological microscopes became into use scientist were able to see the eggs of the flies passed on through cell division
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BIOSC 0050 Oct. 9‚ 2012 Dead or Alive? (Week 2) Post-Lab Assignment Results: The results of the Feulgen’s Schiff’s Stain test are that samples ALV-188-23 and ALV-843-20 turned magenta and samples ALV-882-21 and ALV-694-02 did not turn magenta. The result of the tetrazolium test is that all four of the samples did not turn pink. We were not able to conduct the detailed analysis of cultured plates with growth‚ so not results are available for this test. Discussion: For the Feulgen’s/Schiff’s
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Wayne Bertram Williams: Atlanta Child Killer Police circulated this photo at the time showing victims of the Atlanta killings. Photo from CNN Forensic Fiber Analysis Case Study The best-known‚ if not the best-reasoned fiber case in American legal history involving fiber evidence issues is the Wayne Williams trial growing out of the famous Atlanta murders of twelve African-American males in 1979-1980. The Williams case involved all of the subjects still in controversy as we
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Limitations of Sight and Hearing Humans have sight and hearing limitation. Without any devices‚ our sight and hearing was limited. Most of the limitation of sight can be overcome with the help of certain optical instruments such as magnifying glass‚ microscope‚ binoculars and others. The range of frequency of hearing in human 20 Hz to 20 000 Hz. It was different according to the age of a person. Hearing limitations can be overcome by using devices such as microphone‚ stethoscope‚ earphone and PA system
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