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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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Omm

OMM

Lesson 7

Exploring Cells


Introduction

Introduction

  • See p 82

  • Read p 83-85

  • Discuss


Inquiry 7 1

Inquiry 7.1

  • Obtain a sample of Spirogyra

  • Observe under 100X magnification and discuss how this alga got its name


Inquiry 7 11

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


Inquiry 7 2

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?


  • Inquiry 7 3 question

    Inquiry 7.3 Question

    How does salt effect a plant cell?


    Hypothesis

    Hypothesis:

    If…then…because


    Procedure

    Procedure:

    See p 90

    • Observe Elodea from freshwater

    • Observe Elodea from salt water


    Omm

    Data:

    • Drawing of Elodea from freshwater

    • Drawing of Elodea from salt water


    Vocabulary

    Vocabulary:

    cellcell membrane

    cell wallchloroplast

    chromosomecytoplasm

    DNA endoplasmic reticulum

    Golgi bodieslysosome

    mitochondrianucleus

    organellephotosythesis

    ribosomevacuole


    Conclusion

    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.


    Inquiry 7 4

    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


    Inquiry 7 41

    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


    Reflection

    Reflection:

    Answer questions on page 93


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