Download Measuring Under a Microscope Data Sheet

Measuring Under a Microscope Data Sheet
Plant and Animal Cells
Observations:
1. How many micrometers are in 1 millimeter? _______
2. How many micrometers are in 1 meter? ________
3. Low Power magnification= _______X
4. High Power magnification= ______X
5. Measurement of the low power field diameter= ______ millimeters.
6. Measurement of the low power field diameter= ______ micrometers.
7. Use the formula shown in step 7 of your lab instructions to calculate the high power field
diameter in micrometers. SHOW your work here.
8. How many times is the magnification increased when you change from low power to high
power magnification? (HINT: do not use subtraction)
9. How many times is the diameter of a field decreased when you change from low power to
high power magnification?
MEASURING DATA: (Note: if the object is rod shaped, take the measurement from its
longest length.)
Plant Cells:
10. My unstained cells were different than the stained cells in that …_________________
__________________________________________________________________
11. What structures are visible after staining? _________________________________
12. I know that my specimen is one containing plant cells because ____________________
__________________________________________________________________
13. Elodea cells are different in appearance from the other plant cell in that … __________
__________________________________________________________________
14. Elodea cells are similar in appearance to the other plant cells in that …______________
__________________________________________________________________
15. Even if a specimen lacks visible chloroplasts, I know it is a plant because ____________
__________________________________________________________________
Animal Cells:
16. My cheek cells were different from the elodea cells in that… _____________________
__________________________________________________________________
17. The second animal cell slide is different from my cheek cells in that … ______________
__________________________________________________________________
18. The second animal cell slide is similar to my cheek cells in that… __________________
__________________________________________________________________
19. Animal cells differ from plant cells in that … _________________________________
__________________________________________________________________
20. You know that you are not looking at a plant cell because: ________________________
__________________________________________________________________
21. Plant cells are stiff and immobile because ___________________________________
__________________________________________________________________
22. Animal cells are so much more varied in their appearance when compared to plant cells
because ____________________________________________________________
Unknown???
23. The unknown slide was from a plant or animal
(circle one) because _________________
_________________________________
APPLICATION QUESTIONS- Show your work
24. Approximately 500 of a certain type of bacteria can fit across your low
power field of view. What is the estimated size of 1 single bacterium?
25. Approximately 7 of a certain type of protist can fit across your high power
field of view. What is the estimated size of a single protist?
26. If a microscope has a low power magnification of 100X, a high power
magnification of 600X and a low power field of diameter of 1800
micrometers, what is the high power field of diameter in micrometers?
27. If 20 objects fit across a low power field of view whose diameter is 3000
micrometers, what is the approximate size of each object?