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27 Cards in this Set

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Chlorophyta
single celled, green algae, multicellular filament sheets.
Phaeophyta
brown algae, fucoxanthin= pigment that gives brown color.
Are large
Stipe-stem, blade-leaflike, alginate-body
Rhodophyta
Red algae/ most are marine seaweed/Phycoblins chlorophyll pigments, absorb light deep in sea, 200m deep/ carageenan coats these algae
Bacillariophyta
contain diatoms/ centric- circular or triangular/ pennate- rectangular shells, fresh water.

Diatomaceous earth- layer of diatom shells
Dinoflagellata (red tide)
Unicellular/ Some are bio-luminescent/ red tides are common off the gulf of mexico/ poison shellfish
Chrysophyta
Golden algae/ 2 flagella on each side of organism/ create petroleum deposits.
Euglenophyta
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.
phylum acrasiomycota
Cellular slime molds-lives as individual haploid cell

Pseudoplasmodium = is a coordinated colony of individual cells that resemble a slug
phylum oomycota
Are pathogenic to plants

Phytophthora infestans = the potato blight
Chytridiomycota
Many are parasites on plants, algae, and insects

Believed to be the link between protists and fungi
T OR F Are algae autotrophic?
T
What do algae lack?
Algae lack tissue differentation, they have no true roots, stems, or leaves.
Gametangia
Algae reproduce with gametangia
Pyrenoids
these are organelles that synthesize starch and store starch.
Colonial Algae
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
Volvox
Colonial green algae
Filamentous Algae
-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
Multicellular Algae
They often have large complex thallus
Ex: Ulva has a leaflike thallus that may be several centimeters wide but only 2 cells thick
Algae are classified into 7 Phyla based on their:
Color
Type of chlorophyll
Form of food-storage substance
Cell wall composition
-----all contain the light-absorbing photosynthetic pigment chlorophyll a.
Reproduction of Algae
Zygospore
a resting state that can withstand tough unfavorable environmental conditions.

when the zygospore breaks down a living zoospore emerges.
Antheridium
Male sex organ of algae
Oogonium
Female sex organ of algae
Holdfast
rootlike structure of an algae, holds on.
sporophyte
the asexual and usually diploid phase, producing SPORES from which the gametophyte arises
sporangia
A single-celled or many-celled structure in which spores are produced
gametophyte
the gamete-producing and usually haploid phase, producing the zygote from which the sporophyte arises
alternation of generation
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