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Kingdom Protista

Kingdom Protista. The Miscellaneous Category. Animal like (4). Plant like (6). Protists. Paramecium. Fungi like (1). volvox. Hartmanella vermiformis Protozoan. Protists:. A varied kingdom with 11 phyla that have little in common!

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Kingdom Protista

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  1. Kingdom Protista The Miscellaneous Category

  2. Animal like (4) Plant like (6) Protists Paramecium Fungi like (1) volvox Hartmanella vermiformis Protozoan Protists: • A varied kingdom with 11 phyla that have little in common! • Incredible biodiversity  occupying almost every niche and habitat!

  3. Features • Most are unicellular. Some form colonies of identical cells. A few are multi-cellular but don’t form tissue (algae) • Cells are eukaryotic – membrane- bound nucleus, most have vacuoles & mitochondria, some have chloroplasts. • Cell reproduce asexually through binary fission. Some exchange DNA via conjugation • Cells thrive in moist environments (fresh or salt water, animal fluids & very damp terrestrial environment)

  4. eyespot Mitochondrion Structure(Figure 2, Pg. 128)

  5. Spirogyra diatoms Polysiphonia Red Algae Plant-Like Protists • Contain chlorophyll  can photosynthesize (autotrophs) • But… during dark periods, can engulf nutrients from their environment (heterotrophs) • Most have 2 flagella for locomotion • Examples: species of green, brown and red algae

  6. Amoeba proteus Arcella, a common shelled amoeba  Paramecium Animal-Like Protists • All are heterotrophs  can gather nutrients by engulfing their food or by absorbing it through their membranes • Classified by type of locomotion (cilia and flagella) • Reproduce by binary fission • Examples: • Amoeba (feed by phagocytosis • Paramecium (feeds via an oral groove)

  7. Importance of Protists: • Provide the critical base to most food webs Algae • Primary food producers in aquatic food chains • Provide 80% of the world’s oxygen • Used by humans as food, fertilizers, drugs, cosmetics, etc…

  8. HELP ME! The End!!!

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