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KingdomProtista2
Lab two kingdom Protista
| Question | Answer |
|---|---|
| Three main groups in kingdom Protista | algae, protozoans and slime molds |
| Four levels of tissue classification | unicellular, filamentous, colonial and multicellular |
| Define unicellular | single cell "floating" around |
| Define filamentous | long chains of cells |
| Define colonial | clumping together of cells |
| Define multicellular | cell specialization "division of labor" |
| Euglenozoa | protozoans including the groups euglenoids and kinetoplastids |
| Euglenoids | unicellular motile species of protozoans, mostly freshwater, both auto/heterotrophic. trademark: eyespot (stigma), two flagella and a pellicle. |
| Stigma | eyespot |
| Pellicle | flexible outside structure of an euglenoids |
| Kinetoplastids | protozoans that are heterotrophic, unicellular/colonial with at least one flagellum and symbiotic |
| Trypanosoma | human parasite causing African sleeping sickness uses flies as a vector |
| Trychonympha | lives in the guts of termites, produces an enzyme which breaks down cellulose in the wood termites consume |
| Alveolata | includes the clades dinoflagellates,apicomplexans and ciliates shared characteristics: alveoli below the plasma membrane |
| Alveoli | stacked flattened vesicles |
| Dinoflagellates | photosynthetic Alveolata habitats marine/freshwater, unicellular with two flagella, both auto/herterotropic, important primary produces, both free-living and mutualistic forms, helmet cellulosic plates |
| Red tides | explosive population of dinoflagellates kills many fish and bioluminesecent |
| Apicomplexans | unicellular, heterotrophic, blood stream parasites |
| Plasmodium | bloodstream parasite that causes malaria |
| Ciliates | heterotrophic alveolates, unicellular with a large number of cilia, have two types of nuclei |
| Micronuclei | involved in sexual reproduction |
| Macronucelus | contains many copies of the genome and involved in physiological functions |
| Paramecium | ciliate, free-living, freshwater, contains "oral groove" where water enters |
| Vorticella | ciliate, fresh water sessile fliter feeder with cilia around the body |
| Strameonpila | includes brown algae, diatoms and water molds. noted by the presences of fine flagellar hairs |
| Brown algae | photosynthetic (fucoxanthin=brown pigment) multicellular range from microscopic to large kelps, dominate rocky shores of cold marine areas, include four parts |
| Four parts of brown algae | holdfast, stipe, bladder and blades |
| t/f the holdfast of brown algae is a root | false, the holdfast's purpose is to anchor not to absorb nutrients |
| Fucus | rockweed, multicellular which has dichotomous branching |
| Oogonia | where eggs are produced in Fucus |
| Antheridia | where sperm is produced in Fucus |
| Diatoms | have cell wall made of SiO2 symmetry: pennate= bilateral freshwater, centric=radial marine water, unicellular/colonial primary producers |
| Diatomaceous Earth | large deposits of glass shell of diatoms (chalk like) |
| Rhodophyta | red algae, warm marine environments, autotrophic, phycoblins= red pigment, live in very deep depths (use blue/bluegreen light waves) have CaCO3 om their cell walls |
| Rhizopoda | unicellular (large), heterotrophs, no defined cell wall, use pseudopods have two vacuole types (Amoebas) |
| What are the two vacuoles of amoebas? | phagocytic and contractile |
| Define phagocytic vacuole | feeding vacuole that uses phagocytosis |
| Define contractile vacuole | osmotic balance vacuole |
| Foraminifera | heterotrophic marine organism, "shelled amoebas" have test and poda to feed and move |
| Define pseudopod | extension of the cytoplasm used by amoebas |
| Slime molds | multinucleate, heterotrphic, found in dense, damp dark forested areas; have no hyhpae, use phagocytosis to feed, use chemotaxis |
| Define chemotaxis | movement towards a chemical stimulus |
Created by:
missmyk
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