1 / 13

Amoeba and Paramecium

Amoeba and Paramecium. Biology 11. Amoeba - GRAMMERS. Growth – 0.6mm biggest (most smaller) Response – positive to food - negative to harsh chemicals, light and cold. -Can distinguish food from non-food. Amoeba Proteus. Amoeba continued…. Adaptations:

Ava
Télécharger la présentation

Amoeba and Paramecium

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Amoeba and Paramecium Biology 11

  2. Amoeba - GRAMMERS • Growth – 0.6mm biggest (most smaller) • Response – positive to food - negative to harsh chemicals, light and cold. -Can distinguish food from non-food.

  3. Amoeba Proteus

  4. Amoeba continued… • Adaptations: -pseudopods for moving and feeding. -contractile vacuole -plasmasol / plasmagel • Movement: -by pseudopods or “false feet” -move on solid surfaces – cannot swim -move ~ 20mm/hr

  5. Amoeba continued… • Metabolism: -eat by phagocytosis -drink by pinocytosis -food vacuoles develop -digestion by lysosomes -feed on paramecium and flagellates -O2 & CO2 free to diffuse across P.M.

  6. Amoeba continued… • Excretion: Exocytosis removes indigestible materials. CO2 diffuses across PM • Reproduction: Asexual – cell division. • Size and Shape: Undefined.

  7. Paramecium caudatum

  8. Paramecium Grammers • Growth: 0.05 mm avg. • Respond: -react to chemicals – salt and vinegar -live in slightly acidic environments (stagnant H2O) -anterior end sensitive – move by trial and error

  9. Paramecium continued… • Adaptations: • Cilia to help feed and escape • Contractile vacuoles • Trichocysts

  10. Paramecium continued… • Movement: by cilia in circular motion, move ~ 60 mm/hr • Metabolism: -food pulled into oral groove by cilia -food vacuole forms at gullet -lysosome aids with digestion *Feed mostly on bacteria, smaller protozoans and algae.

  11. Paramecium continued… • Excretion: -Contractile vacuole removes excess H20. -C02 across pellicle by diffusion -anal pore removes waste. • Reproduction: Asexual - cell division Sexual – conjugation (exchange of micronucleus DNA)

  12. Paramecium continued… • Size and Shape: Defined (due to pellicle)

  13. THE END!!!Now - Compare and Contrast

More Related