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Cells

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Cells Cells Presentation Transcript

  • Cells
  • Calculating Magnification
    Pollen Grains
    Actual size 100 mm
  • Calculating Magnification
    The general formula for calculation magnification is:
    Drawing size
    Magnification =
    Actual size
  • Red Blood Cells
  • RBC
    Contains hemoglobin
    Helps in the transport of gases (oxygen and carbon dioxide)
    Binds to oxygen molecule in the lungs or gills and release them throughout the body
    Biconcave shaped (doughnut shaped)
    therefore can easily pass through the capillaries.
    This also increases surface area
    Absence of nucleus
    this provides more space and more hemoglobin can be stored.
  • Root Hair Cells
  • Root Hair Cells
  • Root Hair Cells
    The thin hair-like extension of each cell gives a large surface for water to enter into the root.