Protists Lab Review Ciliates: Paramecium Locomotion structures? Cilia Heterotrophic or Autotrophic? Heterotrophic How are nutrients obtained? Cilia create currents that move particles toward food channel Name of food channel? Oral Groove Natural habitat? Aquatic, fresh water Ciliates: Paramecium cilia plasma membrane oral groove contractile vacuole food vacuole Ameoboids: Ameoba 1. Describe body shape. Amorphous (no form) 2. Locomotion Structures? Pseudopods 3. Mode of nutrition? Heterotrophic 4. How is food ingested? Phagocytosis 5. Natural habitat? Freshwater Ameoboids: Ameoba Structures plasma membrane cytoplasm pseudopod Phylum Euglenoids: Euglena Euglenoids: Euglena Locomotion Structures? Flagellum Mode of nutrition? Autotrophic Pigment(s)? Chlorophyll Alternative feeding? Absorption Natural habitat? Polluted water Structures flagella plasma membrane chloroplast Ceratium 1. Locomotion Structures? Flagella 2. Mode of nutrition? Autotrophic 3. Cell wall? Cellulose 4. Ecological importance? Base of food chain, CO2, Red tide 5. What is a red tide? Algal bloom Significance? High reproduction/mortality event; reduces some organisms, feeds others, ecosystem-wide effect 6. What is bioluminescence? Ability to produce light in organisms. What phylum? Dinoflagellates Dinoflagellates Structures: cell wall flagella Diatoms Diatoms Diatoms 1. Describe the cell wall. Sculptured What’s the cell wall made of Silica What makes the cell wall unique? composed of two “valves” 2. What pigments are present? Chlorophyll, fucoxanthin 3. Natural habitat? Everywhere! 4. Mode of nutrition? Autotrophic 5. Ecological importance? Base of food web in open water Remove CO2 from atmosphere Some fix N Green Algae 1. Form? Filametous 2. Mode of nutrition? Autotrophic 3. Pigment(s)? Chlorophyll 4. Cell wall? Cellulose 5. Motility? None 6. What Phylum? Green algae 7. Natural habitat and ecological significance? Base of food chain along water’s edge Volvox 1. Movement? Flagella 2. Mode of nutrition? Autotrophic 3. Pigments? Chlorophyll 4. Habitat? Freshwater Structures colony individual cells daughter colony Green algae 1. Macro-algae are key producers in which aquatic ecosystem? Benthic-littoral 2. Pigment(s)? Chlorophyll 3. Examples: sea lettuce 4. Cell wall? Cellulose Red Algae 5. Two Examples: Filamentous, blade-like, coraline 6. Advantage of red pigment? Photosynthesis in deeper water 7. Hard substance deposited in coralline red algae cell walls? Calcium Brown Algae 8. 2 Examples: Kelp, rockweeds 9. 2 Pigments? chlorophyll, fucoxanthin 10. Cell wall? cellulose 11. Which algae are closest relatives of plants? Why? Green algae share pigments, physiology and genetics with land plants Brown Algae 12. Structures blade bladder stipe holdfast 13. How does the body plan compare to a typical plant? Convergent Evolution 14. What environmental factors selected for similar body plans in kelp in the sea and plants on land? Need to support body while growing toward light. Phylum Amoeboids: Amoeba Phylum Green Algae: Volvox Phylum Brown Algae Phylum Green Algae: Ulva Phylum Ciliates: Paramecium Phylum Red Algae Phylum Dinoflagellates: Ceratium Phylum Red Algae .