Thursday, March 7, 2019

Focusing, Positioning and calculating the size of cells Essay

class period 1 Focusing, Positioning and calculating the size of cells Under the Try This tab, realized the puzzles (P1- P6) presented to bring the items into focus. Use the check lists to make sure you have holy all steps Under the Try This tab, complete the measurement puzzles (M1-M3) and compose the answers hereM1 = __150___ micrometers at __10x__Objective spring ( outmatch is 1 unit = __10_micrometers)M2 = __8.0____ micrometers at _100x_____Objective Power (scale is 1 unit = _1.0__micrometers)M3 = ___2.0__ micrometers at __100x____Objective Power (scale is 1 unit = _1.0__micrometers) set 2 Viewing a typed letter e with your scope.Obtain the microscope slue with an e on it from the slide selections. Place the e slide remunerate side up on the stage with the letter e everyplace the hole in the stage. Using the techniques described in the getting started disco biscuit, focus on the letter on the lowest objective power. What do you notice about the orientation of the letter as you look done the microscope? In other words, how does the e position compare to how it looks on the slide when looking at the microscope? Upside down At the lowest power, what is the sum of money magnification of the grasp? 16x Adjust the position of the slide so that a portion of the letter is in the center of the viewing field. Now, rotate the following(a) higher objective in place. If the image is not clear, use hardly the fine tuning knob to adjust. At 10x, what is the total magnification of the image now? 40x At 40x, what is the total magnification of the image now?160x At 100x, what is the total magnification of the image now?400xExercise 3 gentlemans gentleman cheek cells.Your cheeks are lined with very thin cells that can good be removed for viewing under a microscope. These cells are called epithelial cells and they line the outside and inside of your body. Cells are small, but large copious to be viewed with a light microscope. The following procedure shows ho w you would obtain these cells. However, since this is a virtual lab, the cheek cells have already been collected and stain. They are stained with methylene blue to view some sub-cellular parts. This is the actual procedure, but enchant proceed to placing the cheek smear slide on your virtual microscope and transport into focus. 1. Gently scrape the inside of your cheek with a toothpick.2. Using a circular pattern, spread some tongue in the middle of a slide.3. Place a small drop of stain on the saliva smear. The less stain you use, the better the results will be4. Place a cover slip on the stained smear.Knowing the objective scale in Exercise 2, estimate and record the diameter of a unity cheek cell in micrometers.Diameter = ___4__________ micrometersWhat power of objective lens of the eye did you use? 100What was the total magnification?400

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