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Microscopic Organisms/Pond Life

Microscopic Organisms/Pond Life. Bacteria. Most are so small they appear as little dots Some larger ones form designs and shapes Once thought to be algae because they performed photosynthesis. Euglenoids (type of algae). Flagella – whip like tail for movement

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Microscopic Organisms/Pond Life

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  1. Microscopic Organisms/Pond Life

  2. Bacteria • Most are so small they appear as little dots • Some larger ones form designs and shapes • Once thought to be algae because they performed photosynthesis

  3. Euglenoids(type of algae) • Flagella – whip like tail for movement • Red eyespot to sense light used for energy • Large numbers may turn ponds bright green

  4. Volvox(green algae) • Spherical colonies • Bright green cells • Colonies may have up to 500 cells

  5. Amoeba • Unicellular protist • Surround and engulf prey • Free forming, can change shape

  6. Paramecium • Small unicellular organism • Swims and rotates slowly • Covered by hair-like cilia • Feed on bacteria and smaller microorganisms

  7. Vorticella(type of ciliate) • Bell shaped or cylindrical body • Cilia • Attach to plants and animals • Stalk can contract quickly

  8. Rotifer • Small mulitcelled animal • Red, light sensitive eyespots • Use cilia to rotate food into their mouth

  9. Daphnia • Crustacean (hardened shell) • Water flea • Large antennae for movement • Large eyes

  10. Worm • Flexible • Break down organic material on bottom of ponds • Movements vary by type of worm

  11. Insect Larvae • Not microscopic, can be seen with naked eye • Usually transparent • Well developed nervous system and circular system

  12. Pictures and information found at The Smallest Page on the Web http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/wimsmall/smal1.html

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