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26 Cards in this Set
- Front
- Back
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What are the 4 major protozoan groups studied?
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-Flagellates
-Amoeba -Sporozoans -Ciliates |
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What are the major characteristics for Protozoa?
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-eukaryotic
-non photosynthectic -unicellular (or acts independantly in colonies) -no tissues -digestion is intracellular (lysosome + food vacoule) -many species of protozoans can encyst themselves within protective walls or sheaths secreted around themselves. -cell bounded by plasma membrane -some covered by pellicles -some covered by test -some covered by loricae |
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What is a pellicle?
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-consists of the plasma membrane and modified outer regions of the cytoplasm
-vary in thickness- from thin and flexible to thick and firm |
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What is a test?
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-an external skeleton of gelatinous or cellulose material or of inorganic calcareous or siliceous material
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What is loricae?
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-a loose outer-covering which they can move around in.
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How do protozoans move?
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-protoplasmic streaming
-flagella -cilia |
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What are myofibrils?
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-contractile cells which allow them to contract their bodies or stalks quickly
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How do protz feed?
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-Phagocytosis
-lysosomes secrete hydrolytic enzymes to food vacoule, digestion is intracellular |
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What is the contractile vacuole?
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-the main organelle for osmoregularity(ie: water and salt balance)
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How is circulation and transport or food and other substances accomplished within a protozoan?
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-Cytoplasmic streaming and Diffusion
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What is a multinucleate syncytium?
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-when protozoans undergo repeated nuclear divisions without any cytoplasmic division.
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What are spores?
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-the result of the multinucleate syncytium eventually dividing.
-that dividing process is called schizogony |
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What is syngamy?
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-the fusion of haploid gametes in sexual reproduction to form a diploid zygote
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What are isogametes?
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-gametes of identical size and form
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What are anisogametes?
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-term used to refer to gametes of different size
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What are/is oogamy?
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-special case of anisogamy
-one gamete is small and flagellated, the other is large and can't move |
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What are/is Conjugation?
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-sexual reproduction by means of a protopasmic bridge
-exchanges nuclei through the bridge |
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What are/is autogamy?
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-2 nuclei in the same individual fuse to produce a zygote which divides meiotically to produce new individuals
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Draw and label Amoeba proteus.
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Did you get:
-plasmalemma -lobopodium -nucleus -contractile vacuole -food vacuole -ectoplasm -endoplasm |
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Draw and label:
-Arcella -Difflugia -Radiolarian |
Did you get:
-tests/shells? -spines? -actinopodia? -pseudopodia? |
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Draw and label Euglena.
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Did you get:
-nucleus? -nucleolus? -cholorplast? -paramylon body? -both flagella? -kinetosome? -photoreceptor? -stigma? -contractile vacuole? -gullet? -rhizoplast? -cytosome? |
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Draw and label:
-choanoflagellate -trichonympha -trichomonas -opalina |
Did you get:
-flagellum -collar -food vacuole -nucleus -contractile vacuole |
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Draw and label Paramecium caudatum.
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Did you get:
-basic shape?(like a shoe) -contractile vacuole -food vacuole -macronucleus -micronucleus -pellicle -oral groove -vestibule -buccal cavity -cytostome -cytopharynx -cytopyge -cilia |
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Draw and label:
-Stentor -spirostomum -Borticella -Stylonychia |
Did you get:
-membranelles -macronucleus -micronucleus -contractile vacuole -adoral zone of membranelles -peristomal area -myonemes -cirrus |
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Draw and label the Pellicle of Paramecium.
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Did you get:
-cilium -pit -alveolar space -kineodesmo -kinetosome -trichosyst |
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Do paramecia like light/dark? Hot/cold?
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-it likes the happy medium in both cases
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