17 Post-Lab for Microscopes
Gillian Backus; Heidi W. Wangerin; and Paula Rodgers
Post-Lab for Microscopes
Name: ________________________
Lab Checkout:
When you finish the lab, please clean up your lab space and put away your materials neatly in the tray. Once you have thoroughly cleaned, washed, and dried your lab table, please get your instructor’s initials to check-out of lab.
- Lab bench clean, washed, and dried
- Materials put away properly and organized in trays
- Microscope properly put away
Lab completed (% completed = ______ %) Instructor initials: ______________
Activity 1: Parts of a Microscope
1. Describe the path of light as it starts from the illuminator to reach your eye. (List five (5) parts of the microscope the light will pass through)
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2. Which part of a microscope focuses the light on the specimen?
3. Which part of a microscope can be used to adjust contrast?
4. With which objective lens(es) can you use the coarse adjustment knob?
Activity 2: Depth of Field
5. When viewing the string slide, which objective lens allowed you to determine the order of strings and why?
Activity 3: Field Diameter and Review of Cells
6. Define and describe how each of the following changes with an increase in magnification.
| Definition | As magnification increases, this parameter increases, decreases or remains the same |
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| Field diameter |
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| Depth of field |
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| Resolution |
7. Using all three of the terms field diameter, depth of field and resolution, explain how the picture below has changed as magnification changed.
