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9 Cards in this Set
- Front
- Back
Alveolates
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Dinoflagellates often live within corals,mollusks, sponges etc.( some species producepotent toxins)Ex. Peridinium andCeratium
Ciliates- posses twodistinct nuclei:Micronucleus: functionin conjugationMacronucleus: directscell activity Ex. Paramecium |
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Diatoms
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Reproduce by asexualreproduction( binary fission)and sexual reproduction. Cell walls, frustules,contain silicondioxide. Two categories: Centric diatomsroundfrustules w/radial symmetry Pennate diatomselongatedfrustulesw/ bilateral symmetry |
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Brown Algae |
Contain pigmentschlorophylls a and c,and fucoxanthin. Typical Parts: •Holdfast- anchorsalga in place/onsubstrate •Stipe- stalk or stemlike structure •Blade/Lamina-primary photosyntheticstructure; often bearssexual repo.structures. •Pneumatocysts- gasfilled bladder; providebuoyancy. Ex: Sargassum, Fucus, Laminaria |
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Red Algae |
Contain pigmentschlorophyll a andphycoerythrin, causesred color. Store photosyntheticproducts as florideanstarch. They produce nomotile, flagellatedcells in their lifecycle. Ex:Polysiphonia, Chondrus |
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Chlorophytes |
Chlamydomonas;eyespot helps orientorganism to light. Chloroplasts containpigments chlorophylla and b. Store photosyntheticproducts as starch.Cell walls containcellulose. ∗ Occur mostly inmarine ecosystems! Ex: Volvox, Ulva, Chlamydomonas |
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Charophytes
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Chloroplasts containpigments chlorophylla and b.
Store photosyntheticproducts as starch. Have cell wallscontaining cellulose. ∗ Occur primarily infreshwater. ∗ Closet relatives tothe land plants! Ex: Spirogyra,Chara |
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Excavates
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Three groups:
• Parabasalids- possessgreatly reducedmitochondria & axostyle,stiff rod-like structurerunning thru center of cell. Ex. T. vaginalis • Euglenid- possesschloroplasts and function asheterotrophs in the absenceof light. ( be familiar withstructures from lab)Ex. Euglena • Kinoplastids- allheterotrophic and mostparasitic; possess kinoplast,dark staining lump of DNA.Ex. T. gambiense/brucei |
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Rhizaria
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Two groups:
• Foraminiferans- formcalcium carbonate shells;possess long, threadlikebranching pseudopods calledfilopodia.Ex. White Cliffs of Dovercomposed of foraminiferanremains • Radiolarians- form glassyendoskeletons made ofsilica; possess needlelikepseudopods called axopodia. ∗ Rhizaria pseudopods aremade of microtubule! -function to increase surfacearea for buoyancy and tocapture prey. |
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Amoebozoans
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Possess blunt, fingerlikelobopodia forlocomotion and foodacquisition.
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