worksheet

Lab 12 – Microscope Labeling

Submit to Lab 12 dropbox as Lab 12-week9_LastName_FirstInital

Name____________________________ Date________________________

Section__________________________

Title:

Purpose:

Methods:

http://www1.udel.edu/biology/ketcham/microscope/scope.html

https://ed.ted.com/lessons/the-wacky-history-of-cell-theory

Make sure you observe the bacteria capsules at 1000X magnification

Results:

Label the microscope parts on the figure on the next page

Lens System	Magnification of Occular Lens	Magnification of Objective Lens	Total Magnification
Scanning
Low Power
High-Dry
Oil Immersion

7.

6.

5.

4.

3.

2.

1.

Conclusion:

Conclusion:

Why is it important to start with the lowest magnification?

What objective lens you should have in place to begin looking at your specimen? Explain why.

Assuming the light is on and the oculars are in place, what are the next 2 steps?

Describe the difference between the coarse focus and the fine focus.

What are you supposed to do with the coarse focus?

What happens if you try to use the coarse adjustment when the 10X lens is in place?

Look at the Onion root

Look at the Bacterial Capsules

.

Why could you see details at 100X with the onion root but needed to use 1000X for the bacterial capsules? Hint think about size of object.