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Dangerous Ideas and Forbidden Knowledge, Spring 2005
Lab 1 Worksheet
Name: ___________________
Microscopy, Cells, and Micropipettes
1. If you are observing a sample using your 10X objective lens, the total magnification of the
image you observe is ________X.
2. Draw a single, isolated cheek cell (at high power) in the
space at right. As you’ll do with any biological drawing,
include the name of the organism, magnification, color, a
description of the shape, and a description of any
structrues that you can see inside the cells.
Specimen: ____________________
Total Magnification: ____________
Description: ___________________
______________________________
3. Draw a portion of the Elodea leaf you observed (at high
power) in the space at right. As you did above, be sure to
identify your specimen, note your total magnification, and
describe and label any structures you can identify within
the cells.
Specimen: ____________________
Total Magnification: ____________
Description: ___________________
______________________________
4. Compare and contrast the structure of the animal and plant cells. What do you notice that they
have in common? In what ways are they different?
5. How large are the bacteria cells compared to the other cells you have observed today? Keep in
mind that you have observed these cells at 1000X, and the others at 100X or 400X. Do they
appear to have anything in common with plant and animal cells? How are they different?
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Dangerous Ideas and Forbidden Knowledge, Spring 2005
6. In the space at right, draw one organism you found in the
pond water sample, including labels and descriptions, as
always.
Specimen: ____________________
Total Magnification: ____________
Description: ___________________
______________________________
Do you think the organism you selected is most likely a plant, animal, bacteria, or
something else? Briefly explain your reasoning.
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