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30 Cards in this Set
- Front
- Back
eukaryotic organisms that convert the sun’s energy into food through photosynthesis but that do not have roots, stems, or leaves
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algae
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the alternation of sexual reproduction and asexual reproduction in certain plants and animals
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alternation of generations
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a reproductive structure that produces male sex cells in flowerless and seedless plants
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antheridium
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a cell or an organ that produces gametes
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gametangeium
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in alternation of generations, the phase in which gametes are formed; a haploid individual that produces gametes
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gametophyte
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a single-celled gametangium (female sex organ) in some algae and fungi
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oogonium
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the microscopic, photosynthetic organisms that float near the surface of marine or fresh water and that are the basic source of food in many aquatic ecosystems; examples include algae and cyanobacteria
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phytoplankton
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a small, protein structure that is found within the chloroplasts of algae and some liverworts and that plays a part in the synthesis of starch
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pyrenoid
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a specialized sac, case, capsule, or other structure that produces spores
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sporangium
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in plants and algae that have alternation of generations, the diploid individual or generation that produces haploid spores
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sporophyte
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the body type of an algae, fungus, or plant that is not differentiated into roots, stems, or leaves
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thallus
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a flagellated, motile spore produced by algae and some protozoans
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zoospore
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in some algae, a thick-walled protective structure that contains a zygote that resulted from the fusion of two gametes
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zygospore
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a gel-like base for culturing microbes; extracted from certain red algae
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agar
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a salt of alginic acid
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alginate
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the production of light by means of a chemical reaction in an organism
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bioluminescence
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a plant disease characterized by the browning of leaves, stems, and flowers
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blight
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the broad, flat portion of a typical leaf
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blade
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aquatic protists
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chytrid
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a substance that is found in the cell walls of red algae and that is used commercially as a smoothing agent in foods
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carageenan
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a unicellular alga that has a double shell that contains silica
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diatom
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a soft, fine, porous deposit that is composed mainly of the skeletons of diatoms
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diatonaceous earth
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unicellular algae that show both plant and animal-like characteristics
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euglenoid
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brown pigment in brown algae
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fucoxanthin
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a carbohydrate made by brown algae
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lamanarin
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a pigment in red algae that can absorb the wavelengths of extremely dim light, which allows red algae to exist in very deep water
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phycoblin
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a population explosion of certain marine dinoflagellates that causes the water to turn a red or red-brown color and to contain poisonous alkaloids produced by the dinoflagellates
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red tide
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stem-like portion of the alga
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stipe
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half of a diatom
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valve
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the multinucleate cytoplasm of a slime mold that is surrounded by a membrane and that moves as a mass
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plasmodium
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