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- USING & FOCUSING THE MICROSCOPE: 1. List the following items into their correct order for proper set-up & use of the microscope: set scanning lens (4x), set low power lens (10x), turn on power, place slide on stage, set light to medium, look through eyepiece (= oculars), fine adjustment focus, coarse adjustment focus, center specimen 1. 2. 3. 4. 5. 6. 7. 8. 9.1%V l1. :Q2/ Choose true or false نقطة واحدة Q/ The part of microscope that used to move the condenser down * .and up is coarse adjustment knob True False Sialg äbäi Q/ The superficial layer of stratified * epithelial tissue is columnar cell True False نقطة واحدة Q/ Special features of epithelial tissue that have finger like * projections is microvilli True False II >How does the microscopy in Figure 2 show that the capsule and an S-layer can exist in the same cell at the same time? I need help finding the answer in the article and explain in short answer link to article: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC106848/
- 5) Label the parts of the microscope. 4 1 5 7 8 Nikon 10 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. CO1. Identify features of Dark-field Microscopy (1-2 paragraph) 2. Give three examples of the uses of microscopes outside the field of biology and medicine. (3 examples with 5sentences explanation each)Answer the following questions: Why are most cells so small? Why cell size is limited? List two instances when the coarse adjustment knob is never used Why is immersion oil used with the 100X objective? List two common problems associated with using the microscope and how you would go about solving it. When should the lenses be cleaned? What is the correct way to clean them?
- SBI 3C1 VIRTUAL LAB: THE MICROSCOPE INSTRUCTIONS: Go to the following link: https://virtuallabs.nmsu.edu/micro.php. Click the continue tab and follow the instructions on how to properly use a microscope. When you are complete, answer the questions below. PART A: MAGNIFICATION OF THE MICROSCOPE - How much biggerl enlarged is the specimen? TOTAL MAGNIFICATIION (eyepiece (ocular) magnification) X (objective lens magnification) Calculate the total magnification for each lens below for a simple COMPOUND LIGHT MICROSCOPE ОBJECTIVE LENS POWER OCULAR MAGNIFICATION OBJECTIVE LENS MAGNIFICATION TOTAL MAGNIFICATION MAG (X) = Ocular X Objective LOW LP MAG = MEDIUM MP MAG= HIGH HP MAG- Complete the following chart by calculating the missing lens or total magnification [2] TOTAL MAGNIFICATION OBJECTIVE LENS MAGNIR AR (EYEPIECE) MAGNIFICATION 5X 80X 10X 40X 10X 100X 500X 50X PART B: HOW TO USE THE COMPOUND MICROSCOPE TO VIEW SLIDES Access the Virtual Microscope at…30 What is the magnification of the microscope shown below? Grid your answer. 10x O 000 25xA. Purpose: Figure 1 B. Materials: Microscope Magazine Slides and cover slips Paper towels Pipette Scissors C. Procedure: 1. Careful carry a microscope to your lab area. Make sure to hold it with one hand under the base and one hand on the arm as shown in Figure 1. 2. Plug the microscope in and turn it on. Take a moment to look at all the parts of the microscope. Then look at your ocular lens. What is the magnification of the ocular lens (eye piece)? Figure 2 3. Fill in the chart to show the total magnification for each objective lens. Magnification of Ocular Lens Magnification of Objective Lens Objective Lens Total Magnification Low Power Medium Power High Power
- 4 7. Repeat this procedure once more with the slide of simple columnar epithelium, starting with the 4X objective and going to the 40X objective (total magnification of 400X). > Simple columnar epithelium is found lining both your stomach and your small intestine. Describe how its function in each location is similar, and how it is different: Similarity in function Difference in function stomach small intestineWhich of the follow are correct statements about microscope handling and care? 1. Always use TWO HANDS to carry the microscope. 2. Only use LENS PAPER to clean the lenses. Never wipe back and forth, but simply make a gentle swipe across the lens. 3. A soft cloth should be used to clean the lenses. 4. Start and finish the day’s work at the LOWEST MAGNIFICATION. 5. Start and finish the day’s work at the HIGHEST MAGNIFICATION 6. Always BEGIN examining a specimen with a LOW POWER objective. 7. Always BEGIN examining a specimen with a HIGHEST POWER objective 8. On the compound microscope, NEVER use the coarse adjustment knob with the high power or oil objective. 9. On the compound microscope, ALWAYS use the coarse adjustment knob with the high power or oil objective. 10. Unplug the microscope by pulling on the plug, not the cord.districtims.seattleschools.org/common-assessment-delivery/start/5362404321?action3Donres Biomolecules, Cell Theory, and Microscopes HW Quiz Which microscope should you use for examining a whole, multicellular organism? Compound microscope O Stereoscopic dissecting microscope