Virtual Tour of the MicroscopeBegin by going to this website:http://www.udel.edu/biology/ketcham/microscope/scope.html1. Make sure your volume is on then click “Start Tour” at the bottom right of the “Getting Started” box.2. When it asks you to select a slide begin with the green specimen-Onion Root Tip, this is the easiest to see (2ndfrom top).3. Click the “Switch Objectives” tutorial under the Getting Started box.LISTEN!CHECKPOINT: Which lens does the tutorial tell you to start with?4. Follow the tutorial prompts to learn how to center the slide and focus your specimen.CHECKPOINT: Describe how the coarse and fine focus differ:CHECKPOINT: What are you supposed to do with the coarse focus?5. Once your specimen is in focus using the 4X lens, use the revolving nosepiece at the bottom left of your screen to move the 10X lens into place. Use the fine focus to adjust.CHECKPOINT:What happens if you try to use the coarse adjustment when the 10X lens is in place?CHECKPOINT: What happens to your image if you try to magnify it using 40x or 100x?6. Draw the Onion Root Tip using 10x magnification7. Follow the same procedure for the bacterial capsules and cheek cells slides. Draw the images using the total magnification shown under the circleSpecimen: Onion Root Tips 100 x MagnificationSpecimen: Bacterial Capsule 100 x MagnificationSpecimen: Bacterial Capsule 1000x MagnificationSpecimen: Cheek Cells 400x MagnificationA quick review:1. What objective lens you should have in place to begin to look at your specimen?2. True or False : You only use the course focus knob when you have the 4X scanning objective in place.3. Assuming the light is on and the oculars are in place what are the next 2 steps?4. If you need more light to view your specimen then you need to adjust theCHALLENGE! Click “Try This” to test your microscope skills!Do P1 through P6 to test your microscope skills
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