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9 Cards in this Set

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Alveolates
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

Diatoms

Reproduce by asexualreproduction( binary fission)and sexual reproduction.




Cell walls, frustules,contain silicondioxide.




Two categories:


Centric diatomsroundfrustules w/radial symmetry




Pennate diatomselongatedfrustulesw/ bilateral symmetry

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

Red Algae

Contain pigmentschlorophyll a andphycoerythrin, causesred color.




Store photosyntheticproducts as florideanstarch.




They produce nomotile, flagellatedcells in their lifecycle.




Ex:Polysiphonia, Chondrus

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

Charophytes
Chloroplasts containpigments chlorophylla and b.



Store photosyntheticproducts as starch.




Have cell wallscontaining cellulose.




∗ Occur primarily infreshwater.




∗ Closet relatives tothe land plants!




Ex: Spirogyra,Chara

Excavates
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

Rhizaria
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.

Amoebozoans
Possess blunt, fingerlikelobopodia forlocomotion and foodacquisition.