Samuel Heidenreich Miss.Tatu Biology March 5‚ 2015 Introduction In the Mitosis lab an onion root was observed under a microscope to observe whether or not cell division takes place. Also‚ whether cells replicate in order for it to reproduce. By observing the onion root under the microscope it allows many layers to be looked at through each cell division. The goal of Mitosis is the replication of cells to produce multiple like cells. The steps involved in Mitosis are what is known as
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Abstract This experiment was carried out to perform staining methods on microbes‚ explain the mechanisms of staining‚ namely‚ simple staining‚ and learn how to use the microscope. The experiment setting was kept as sterile as possible when conducting the experiment. The microbes under the microscope were drawn out and labelled. In conclusion‚ different staining techniques are used to determine the presence of certain exterior structures of the bacteria like the cell envelope or just to identify
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Gently tap and brush the eggs onto the double-sided tape of the microscope slides; repeat this for the other 2 microscope slides. Examine the slides under the microscope. Count the number of eggs on the slide; repeat for the other 2 petri dishes. Record the data of number of eggs under “0 hours”. Place the microscope slide in the in the 0.5% petri dish‚ tape-side up‚ and place the lid on the dish. Repeat step step 14‚ but place each microscope slide in its appropriate salt solution. Allow the dishes to
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the examination of red blood cells (sheep)‚ plant cells (elodea)‚ and active transport in yeast. Under the microscope‚ we can determine the effects on plant and animal cells exposed to hypotonic‚ hypertonic‚ and isotonic sodium chloride solutions. Plant cells have a cell wall; however‚ animal cells do not. This is examined as a major difference between the two; therefore‚ under the microscope both cells appear much unique from one another. The animal cells examined appear as empty circles or ovals
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white tile‚ stopwatch‚ microscope slide‚ coverslip‚ filter paper‚ Light microscope Method: 1) A piece of banana was place on a tile and a section was cut across the piece of banana about 5mm thick. 2) The surface of the banana was covered with iodine solution and left for about one minute. 3) The distribution of starch in the section of the banana was then illustrated in the outline below. 4) With the remaining piece of banana a microscope slide was wiped across
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find the identity two unknown bacteria in the given test tube. Materials •Bacterial Loop •Bunsen Burner • Petri Dish with agar •Crystal Violet •Gram’s Iodine •95% Ethanol •Safrin •Glass Slides •Microscope •Unknown bacteria in test tube Procedure On the first day‚ one plate was streaked qualitatively and left it in the 25 degrees celsius incubator over five days and attempted to gram stain from the test tube. On
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A) to the fluorescent microscope. Count the number of elementary bodies you see through the microscope (recall that elementary bodies stain green)‚ enter the number of elementary bodies in the field below‚ and then click Submit Data to display your results in the grid. After you click Submit Data‚ the slide will automatically be placed in the biohazardous waste disposal. You answered: 0 elementary bodies 16. Drag the next slide (patient B) to the fluorescent microscope. Count the number of
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familiarity with the proper techniques for using a microscope. The experiment focused on both the basic components of a microscope (i.e. how to adjust the knobs and levers for the desired result) as well as how do decide the proper objective to use for observing a specimen. The second goal major goal of this experiment was to practice observing live specimens (yogurt and blood). Procedures: Exercise 1: Observation of prepared slides using the microscope. The observation of the 8 prepared slides was
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ability to distinguish between two separate points. * An increase in magnification does NOT necessarily mean an improvement in resolution. Ex. A light microscope has a max resolution of 200nm meaning that if two points are closer than 200nm they can’t be distinguished as separate no matter how large the magnification. The electron microscope When a metal becomes very hot‚ some of its electrons gain so much energy that they escape from their orbits. They behave like electromagnetic radiation
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organisms’ basic units of structure and function‚ and cells only come from existing cells. Their discoveries lead to the development of inventions necessary to induce further research in the area which resulted in the creation of devices such as the microscope. Robert Hooke Robert Hooke was probably the greatest experimental scientist of the seventeenth century. He was able to observe cells through studying thin slices of cork which was probably one of his most famous discoveries. He discovered plant
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