BIS 2C Lecture Notes - Lecture 13: Symbiogenesis, Macrocystis Pyrifera, Apicomplexa
27 Apr 2018
School
Department
Course
Eukaryotic Clades
Opisthokonts
Flagellum is single and posterior
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Can be unicellular, multicellular and colonial
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Plantae
Chloroplast through endosymbiosis
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Unicellular, multicellular, colonial
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Alveolates
Have small alveoli sacs under membrane, unicellular, Have plastid (like
chloroplasts) via secondary endosymbiosis
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Types
Dinoflagellates
Photosynthetic primary producers that are important to
freshwater marine life
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Mixture of pigments makes them brown
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Two flagella
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Cause coral bleaching
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Apicomplexans
Internal parasites of animals that use apical complex to get into
hot cells
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Use a small tip to get into host cell
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Malaria and toxoplasma (parasite that infects cats, mice
humans and changes their behavior) are types of this
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Can involves multiple hosts and cell types
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Ciliates
§
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Stramenophiles
Have two flagella, can be unicellular/multicellular/colonial forms, most
have plastid gotten by secondary endosymbiosis
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Types
Diatoms
Photosynthetic unicellular organism responsibly for 20% of
global PS
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Primarily marine
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Have silica in cell walls
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Have vacuoles with oil as energy reserve and buoyancy (after
death forms petroleum
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Brown Algae
Large photosynthetic multicellular organisms
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Giant kelp forests
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Oomycetes (water molds)
Non-PS absorptive heterotrophs that use enzymes secreted to
digest food
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Rhizaria
Most unicellular amoeboids with calcium carbonate shells; small pods
extend through holes in shell
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Found on beaches
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Excavates
Ancient diverse groups that are mostly parasites, some without flagella
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Amoebozoans
Amoeboid that feed by phagocytosis and can be uni-, multi-, colonial forms
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Type
Plasmoid Slide Molds
Ingest food by phagocytosis
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Form spores on stalks called fruiting bodies
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Found in cool moist areas
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Life cycle: individual cells replicate but don't under go
cytokinesis which keeps them in a large
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Cellular Slime Molds
Individual cells that aggregate into one multicellular fruiting
body (must use quorum sensing)
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Each cell have own plasma membrane and individuality
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§
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Eukaryote Diversity (13)
Tuesday, January 30, 2018
6:10 PM
Document Summary
Have small alveoli sacs under membrane, unicellular, have plastid (like chloroplasts) via secondary endosymbiosis. Photosynthetic primary producers that are important to freshwater marine life. Internal parasites of animals that use apical complex to get into hot cells. Use a small tip to get into host cell. Malaria and toxoplasma (parasite that infects cats, mice humans and changes their behavior) are types of this. Have two flagella, can be unicellular/multicellular/colonial forms, most have plastid gotten by secondary endosymbiosis. Photosynthetic unicellular organism responsibly for 20% of global ps. Have vacuoles with oil as energy reserve and buoyancy (after. Have vacuoles with oil as energy reserve and buoyancy (after death forms petroleum. Non-ps absorptive heterotrophs that use enzymes secreted to digest food. Most unicellular amoeboids with calcium carbonate shells; small pods extend through holes in shell. Ancient diverse groups that are mostly parasites, some without flagella. Amoeboid that feed by phagocytosis and can be uni-, multi-, colonial forms.
