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15 Cards in this Set
- Front
- Back
What organelle is present on all Mastigophorians?
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-flagella
**Mastigophorians are sometimes called Flagellata** **contains both plant-like and animal-like forms** |
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List the organelles present in Euglena. (6 main ones.)
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-outer pellicle
-nucleus and nucleolus -chloroplasts and cholorphyll -paramylon bodies -gullet -flagella |
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Is Euglena autotrophic or saprotrophic?
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-it is autotrophic but will become saprotrophic if kept in the dark, provided that peptones are added to the environment
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What are mastigonemes?
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-numerous lateral projections on flagella
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What is the flagella composed of?
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-9 peripheral microtubules and 2 central microtubules
-each peripheral microtubule is made of 2 microtubules |
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What is the kinetosome composed of?
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-9 peripheral groups of microtubules
-each group consists of 3 microtubules |
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How does Euglena recieve information of its environment?
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-has a red eyespot or stigma near the lateral margin of the cytopharynx
-positively phototrophic therefore move towards light -stigma shades the light receptor so Euglena can focus in on the light source **if stigma is destroyed, Euglena becomes negatively phototrophic** |
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How does Euglena reproduce?
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-by asexual longitudinal division
-by encysting |
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What order does Trypanosoma lewisi belong to?
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-belongs to the Order Kinetoplastida
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Where does Trypanosoma lewisi live?
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-lives in the blood of rats
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How is Trypanosoma lewisi transmitted?
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-transmitted from rat to rat from fleas
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What effect does trypanosomes have on man?
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-causes sleeping sickness in man
-may enter cerebro-spinal fluid and cause motor distubances, stupor and may even kill |
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What order do choanoflagellates belong to?
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-the Order Choanoflagellida
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What are metamonads?
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-small orders of flagellate protozoans
-live symbiotically in the digestive or reproductive tracts of animals |
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What is Opalina?
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-a parasite in the guts of frogs
-mulitnucleate and covered by thousands of cilia -not considered ciliates because the division process follows the lines of cilia; division in ciliates cuts across the lines of cila |