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OMM

OMM. Lesson 7 Exploring Cells. Introduction. See p 82 Read p 83-85 Discuss. Inquiry 7.1. Obtain a sample of Spirogyra Observe under 100X magnification and discuss how this alga got its name. Inquiry 7.1. Observe under 400X and focus on one cell Draw the cell Title: Spirogyra cell

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  1. OMM Lesson 7 Exploring Cells

  2. Introduction • See p 82 • Read p 83-85 • Discuss

  3. Inquiry 7.1 • Obtain a sample of Spirogyra • Observe under 100X magnification and discuss how this alga got its name

  4. Inquiry 7.1 • Observe under 400X and focus on one cell • Draw the cell • Title: Spirogyra cell • Magnification: 400X • Label at least two organelles • Measure the cell length

  5. Inquiry 7.2 • Prepare a wet-mount slide with a piece of onion…procedure on p 89 • Observe under 400X magnification • Title: Onion Cell • Label: cell wall, nucleus, cytoplasm • Measure cell length • Why are there no chloroplasts?

  6. Inquiry 7.3 Question How does salt effect a plant cell?

  7. Hypothesis: If…then…because

  8. Procedure: See p 90 • Observe Elodea from freshwater • Observe Elodea from salt water

  9. Data: • Drawing of Elodea from freshwater • Drawing of Elodea from salt water

  10. Vocabulary: cell cell membrane cell wall chloroplast chromosome cytoplasm DNA endoplasmic reticulum Golgi bodies lysosome mitochondria nucleus organelle photosythesis ribosome vacuole

  11. Conclusion: • A conclusion answers the original question (look back at the question). • Be sure to write complete sentences. • Use and underline each of the vocabulary words that apply to Inquiry 7.3 in writing your conclusion.

  12. Inquiry 7.4 • Observe prepared slide of mammalian epithelial tissue • Draw an epithelial cell • Title: Cheek Cell • Label: cell membrane, cytoplasm, nucleus • Magnification • Measure cell length

  13. Inquiry 7.4 • Observe prepared slide of a mammalian nerve cell • Draw a nerve cell • Title: Nerve Cell • Label: cell membrane, cytoplasm, nucleus • Magnification • Measure cell length • Compare nerve and epithelial cells

  14. Reflection: Answer questions on page 93

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