Lab - Cell Variation by hedongchenchen


									Name ______________________________________ Class __________ Date ___________
                                   Lab: Variation in Cells
Part I: Plant Cells
(label in EACH drawing: cell wall, cytoplasm, nucleus, chloroplast)
Elodea in water                                         Elodea in salt water
Total Mag: _______                                      Total Mag: _______

1. What organic compound makes the cell wall of plants rigid?

2. What happened to the Elodea cells when you added salt water to the slide? EXPLAIN!

Potato cells (label: cell wall, cytoplasm, nucleus, leukocytes)
Total Mag: _______

3. Describe the appearance of the potato cells with iodine.
4. What is the function of leukoplasts?

5. Did you see any chloroplasts in the potato cells? Explain why or why not.

Part II: Animal Cells
Cheek cells (label: cell membrane, cytoplasm, nucleus)
Total Mag: _______

6. Describe the appearance (shape) of the cheek cells. How is this different from the Elodea
   cells you saw earlier?

7. Are human cheek cells prokaryotic cells or eukaryotic cells? Explain how you can tell.

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