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27 Cards in this Set
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Chlorophyta
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single celled, green algae, multicellular filament sheets.
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Phaeophyta
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brown algae, fucoxanthin= pigment that gives brown color.
Are large Stipe-stem, blade-leaflike, alginate-body |
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Rhodophyta
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Red algae/ most are marine seaweed/Phycoblins chlorophyll pigments, absorb light deep in sea, 200m deep/ carageenan coats these algae
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Bacillariophyta
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contain diatoms/ centric- circular or triangular/ pennate- rectangular shells, fresh water.
Diatomaceous earth- layer of diatom shells |
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Dinoflagellata (red tide)
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Unicellular/ Some are bio-luminescent/ red tides are common off the gulf of mexico/ poison shellfish
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Chrysophyta
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Golden algae/ 2 flagella on each side of organism/ create petroleum deposits.
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Euglenophyta
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Unicellular algae called euglenoids/ both plant and animal characteristics/ contain chlorophyll/ no cell wall (which is why they are not ALGAE/ slime molds/ fruiting body= spore bearing structure used for reproduction.
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phylum acrasiomycota
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Cellular slime molds-lives as individual haploid cell
Pseudoplasmodium = is a coordinated colony of individual cells that resemble a slug |
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phylum oomycota
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Are pathogenic to plants
Phytophthora infestans = the potato blight |
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Chytridiomycota
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Many are parasites on plants, algae, and insects
Believed to be the link between protists and fungi |
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T OR F Are algae autotrophic?
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T
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What do algae lack?
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Algae lack tissue differentation, they have no true roots, stems, or leaves.
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Gametangia
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Algae reproduce with gametangia
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Pyrenoids
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these are organelles that synthesize starch and store starch.
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Colonial Algae
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Have a structure that consists of a group of cells acting together in a coordinated manner
Some of theses cells become specialized the division of labor lets colonial algae move, feed, and reproduce efficiently |
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Volvox
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Colonial green algae
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Filamentous Algae
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-They have a slender rod-shaped thallus composed of rows of cells joined end to end
-Other filamentous algae have special structures that anchor the algae to the ocean floor ( this holds the algae in one place and it grows toward the sunlight) .Spirogyra are an example |
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Multicellular Algae
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They often have large complex thallus
Ex: Ulva has a leaflike thallus that may be several centimeters wide but only 2 cells thick |
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Algae are classified into 7 Phyla based on their:
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Color
Type of chlorophyll Form of food-storage substance Cell wall composition -----all contain the light-absorbing photosynthetic pigment chlorophyll a. Reproduction of Algae |
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Zygospore
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a resting state that can withstand tough unfavorable environmental conditions.
when the zygospore breaks down a living zoospore emerges. |
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Antheridium
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Male sex organ of algae
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Oogonium
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Female sex organ of algae
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Holdfast
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rootlike structure of an algae, holds on.
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sporophyte
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the asexual and usually diploid phase, producing SPORES from which the gametophyte arises
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sporangia
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A single-celled or many-celled structure in which spores are produced
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gametophyte
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the gamete-producing and usually haploid phase, producing the zygote from which the sporophyte arises
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alternation of generation
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the occurrence of two or more forms differently produced in the life cycle of a plant or animal usually involving the regular alternation of a sexual with an asexual generation
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