I need help with my Biology lab please see the attached files

Microscope Lab Page 1 of 9 Student Name: _________________________ The Microscope Lab Online Discussion Topic : Which 2 objects did you enjoy viewing most and why? Discussion Requirements : 1 original new posting that contains your response to the assigned topic of discussion (Start a new thread, don’t hit reply to the assigned original topic post); 2 replies to coursemate’s posts. Introduction : Microscopes provide a means of viewing what is too small to be seen without magnification. The amount of magnification and detail varies among different types of microscopes. The most common type of microscope is the compound light microscope that magnifies images using mirrors and glass lenses. There are other types of microscopes – including fluorescent, dissecting, and electron microscopes. 1. Refer to the following link to compare various types of microscopes: http: //www.cas.muohio.edu/mbi -ws/microscopes/types.html 2. Refer to the following link to review the parts, functions, and operating instructions of the compound light microscope: http://www.cas.muohio.edu/mbi -ws/microscopes/compoundscope.html Part 1 – Parts of the Microscope and Cells : 1. Complete this labeling exercise to help you in learning the parts of the microscope and parts of cells. 2. Write your answers in the table below. Microscope Lab Page 2 of 9 Student Name: _________________________ http://www.williamsclass.com/Microscope%20use/Microscope%20use%20Page%204.htm Label the parts numbered in the diagram above: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Microscope Lab Page 3 of 9 Student Name: _________________________ 13. 14. Part 2 – The Virtual Microscope : 1. Click on the link below to use the virtual microscope. http://www.udel.edu/Biology/ketcham/microscope/ 2. Go through the tutorial to orient yourself. Be sure to follow the directions. 3. It is very helpful to use the checkmarks on the checklist link on the page to let you know you are using t he microscope correctly. 4. Draw and describe your observations in the spaces below. Letter E Slide Drawings : Letter E Slide Written Descriptions : 4x: _______________________________________________________ __________________________________________________________ 10x: _____________________________________________________ __________________________________________________________ 100 X Letter E at 4X Letter E at 10 X 4 0 X 4 X 10 X Microscope Lab Page 4 of 9 Student Name: _________________________ 40x: ______________________________________________________ __________________________________________________________ 100x: _____________________________________________________ ____________ ______________________________________________ Onion Root Tip Slide Drawings : Onion Root Tip Slide Written Descriptions : 4x: _______________________________________________________ __________________________________________________________ 10x: _____________________________________________________ __________________________________________________________ 40x: _________ _____________________________________________ __________________________________________________________ 100x: _____________________________________________________ __________________________________________________________ 100 X Letter E at 4X Letter E at 10 X 4 0 X 4 X 10 X Microscope Lab Page 5 of 9 Student Name: _________________________ Bacterial Capsule Slide Drawings : Bacterial Capsule Written Descriptions : 4x: _______________________________________________________ __________________________________________________________ 10x: _____________________________________________________ __________________________________________________________ 40x: ______________________________________________________ 100 X Letter E at 4X Letter E at 10 X 4 0 X 4 X 10 X Microscope Lab Page 6 of 9 Student Name: _________________________ ____________ ______________________________________________ 100x: _____________________________________________________ __________________________________________________________ Cheek Smear Slide Drawings : Cheek Smear Slide Written Descriptions : 4x: _______________________________________________________ __________________________________________________________ 10x: _____________________________________________________ __________________________________________________________ 40x: ______________________________________________________ __________________________________________________________ 100x: _____________________________________________________ __________________________________________________________ 100 X Letter E at 4X Letter E at 10 X 4 0 X 4 X 10 X Microscope Lab Page 7 of 9 Student Name: _________________________ Part 3 – The Electron Microscope : Note: While this is an overly -simplified lab exercise, the images you view are excellent. 1. Click on the link to access the virtual electron microscope: https://www.olympus -lifescience.com/en/microscope - resour ce/primer/java/electronmicroscopy/magnify1/ 2. Follow the directions on the page. 3. Select your favorite image and briefly describe what you saw. __________________________________________________________ ___________________________ ________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ 4. Tell why you found this specimen interesting. __________________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ _____________________________________ ______________ Microscope Lab Report Questions: 1. List four types of microscopes discussed and reviewed in the introduction, and give an example of an appropriate use for each. ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ 2. List a pro and con for both a compound light microscope and an electron microscope. __________ _________________________________________ ___________________________________________________ Microscope Lab Page 8 of 9 Student Name: _________________________ ___________________________________________________ ___________________________________________________ 3. Once you had the compound light microscope in focu s using the 4X objective lens, you only had to make minor movements with the fine adjustment knob when you changed magnification to the other objective lenses. That is because microscopes are designed to be parfocal . In your own words, what does the term parfocal mean? ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ 4. In your own words, describe the field of view . ___________________________________________________ ___________________________________________________ ___________________________________________________ _________________________________________________ __ 5. Overall or total magnification of a compound light microscope is calculated by multiplying the magnification of the eyepiece lens by the magnification of the objective lens in use. The standard magnification for microscope eyepieces is 10X. Calculate the total magnification for each of the 4 objective lenses of the virtual compound light microscope ( The first one is completed for you below ): Objective Lens Used Total Magnification 4X 40X 6. Which part of the microscope allows you to adjust the amount of light that passes through the objects on the slide? ___________________________________________________ ___________________________________________________ ___________________________________________________ Microscope Lab Page 9 of 9 Student Name: _________________________ ___________________________________________________ 7. When looking at an object with a compound light microscope, which objective lens do you always use first? _________________________________________ __________ ___________________________________________________ 8. Which part of the microscope allows you to move the stage up and down in very small (finite) increments? ___________________________________________________ ___________________________________________________ 9. Compare and contrast a compound light microscope and a telescope. ___________________________________________________ ___________________________________________________ ____________________________ _______________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________________________________________ ___________________ ________________________________