Onion Cell Experiment under the Microscope

Bio Onion Cell Experiment

1. Name:___________________________ Date:___________
Yr. & Section:____________________ Score:__________

LAB: ONION CELLS

A. OBJECTIVE: To observe the structure of a plant cell.

B. MATERIALS: onion skin, iodine, microscope, slide, cover slip.

C. PROCEDURE:
1. Remove a small piece of the inner surface of an onion
skin.
2. Place the piece of onion skin on a slide.
3. Cover the piece of skin with a drop of iodine.
4. Place a cover slip over the onion skin.
5. Observe under low power; change to high power and
observe the onion skin.
6. Draw the cells of the onion skin under low power and
high power.
7. Label the parts of one cell.
















D. Guide Questions:
1. What type of cell did you observe today?
2. Enumerate atleast 3 structures or organelles could you see?
3. What color does the iodine stain the cell parts?
4. What magnification gave you the best view of the onion cell? Explain your answer.
5. What was the most interesting observation you made today?

E. CONCLUSION:
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2. Name:___________________________ Date:___________
Yr. & Section:____________________ Score:__________

LAB: LETTER E UNDER MICROSCOPE

A. OBJECTIVE: Describe the image of letter E under microscope.

B. MATERIALS: magazine, scissors, microscope, slide, cover slip.

C. PROCEDURE:
1. Cut a letter E from a magazine or newspaper.
2. Place the letter e on a slide.
3. Cover it with a drop of water.
4. Place a cover slip over it.
5. Observe under low power; change to high power and
observe the letter e.
6. Draw the letter e under low power and high power.
















D. CONCLUSION:
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