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Cell Structure & Function

Cell Structure & Function. Discovering Cells Chapter 1 Section 1. Cells. The basic units of structure and function in living things. First Sightings of Cells. The invention of the microscope made it possible for people to discover and learn about cells. Compound Microscope.

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Cell Structure & Function

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  1. Cell Structure & Function Discovering Cells Chapter 1 Section 1

  2. Cells • The basic units of structure and function in living things

  3. First Sightings of Cells • The invention of the microscope made it possible for people to discover and learn about cells

  4. Compound Microscope • A light microscope with more than 1 lens • Can magnify up to 10,000x • Good for… • Cells • Small Organisms

  5. Robert Hooke • 1663, English Scientist • 1 of the 1st people to observe cells • Cork cells  “Rectangular rooms”

  6. Anton van Leeuwenhoek • 1683, Dutch Businessman • Observed… • Pond water • “Animalcules”  little animals • Teeth scum • bacteria

  7. Cell Theory • 3 Key Points… • All living things are composed of cells • Cells are the basic unit of structure and function in living things • All cells are produced from other cells

  8. Magnification • The lens or lenses in a light microscope magnify an object by bending the light that passes through them • Convex lenses

  9. Resolution • The sharpness of an image

  10. Electron Microscopes • Use a beam of electrons to examine a specimen • Can magnify up to 1,000,000x • Good for… • Viruses • Bacteria • Cell organelle

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