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Cell Structure Observation
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Cell Structure Observation
🔬 Part 1: Cell Structure Knowledge
1. Which organelle controls all cell activities?
Cell membrane
Nucleus
Cytoplasm
Cell wall
2. Which structures are found ONLY in plant cells? (Tick all that apply)
Cell wall
Nucleus
Chloroplasts
Cell membrane
3. What stain did you use to observe onion cells?
Methylene blue
Iodine solution
Water
4. Fill in the blanks:
The jelly-like substance inside a cell is called the ______________. It surrounds the ______________ and contains many important chemicals for the cell to work properly.
📊 Part 2: Microscope Observations
5. Draw and label what you observed in the onion epidermis cells:
Magnification used: _____ x
6. Draw and label what you observed in the cheek cells:
Magnification used: _____ x
7. List three differences you observed between plant and animal cells:
🧠 Part 3: Understanding Cell Functions
8. Match each organelle to its correct function by drawing lines:
Cell membrane
Nucleus
Cell wall
Chloroplasts
Controls what enters and leaves the cell
Makes food using sunlight
Gives the cell shape and support
Controls all cell activities
9. Explain why we use stains when observing cells under a microscope:
10. Extension: Suggest one improvement you could make to your cell drawings and explain why:
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