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Cell Size

Cell Size. From Smallest to l a rgest + Prokaryotic Cells. Size Comparison. Kind of CellSize (approximate). Bacteria(E. coli) 1 um Red Blood Cell 8 um Elodea epidermal cell 65 um Amoeba 700 um Hen's egg 50,000 um. Smallest Cells. Mycoplasmas bacteria 0.1 -1.0 µm. Largest Cells.

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Cell Size

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  1. Cell Size From Smallest to largest + Prokaryotic Cells

  2. Size Comparison

  3. Kind of CellSize (approximate) • Bacteria(E. coli) 1 um • Red Blood Cell 8 um • Elodea epidermal cell 65 um • Amoeba 700 um • Hen's egg 50,000 um

  4. Smallest Cells • Mycoplasmas bacteria 0.1 -1.0 µm

  5. Largest Cells • *Ostrich Egg • Chicken Egg

  6. Metrics • 1 cm = 0.01 m (10-2)m centimeter • 1 mm = 0.001 m (10-3)m millimeter • 1 µm = 0.000 001 m (10-6)m micrometer • 1 nm = 0.000 000 001 m (10-9)m nanometer • 1 Å = 0.000 000 0001 m (10-10) Angstrom

  7. Longest Cells • Muscle and Nerve Cells

  8. Nerve Long to send impulses Form and Function

  9. Muscle Move bones Form and Function

  10. Blood Cells Smooth, travel through blood vessels Form and Function

  11. Skin Cell Flat top for protection Cube for cushion Form and Function

  12. As cells get larger, the surface area to volume ratio ______________________ (increases/decreases). • decreases

  13. Prokaryotic Cells

  14. Contrasting Nucleoid and Nucleus

  15. Which are bigger? • Prokaryotic cells 0.2- 2µm in size • Eukaryotic cells 10- 500µm in size

  16. Cocci (spherical) Bacilli (rod) Spiral

  17. Cyanobacteria Note the color: green

  18. Bacteria Capsule Sticky to adhere to surfaces

  19. Prokaryote flagella

  20. Swimming Bacteria How Bacteria Swim (animation link) and also one at bottom

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