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27 Cards in this Set
- Front
- Back
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anisogametes |
Gametes of a species that differ in form or size. |
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autogamy |
condition in which the gametic nuclei produced by meiosis fuse within the same organism that produced them to restore the diploid number |
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axoneme |
the microtubes in a cilium or flagellum, usually arranged as a circlet of nine pairs enclosing one central pair, also the microtubes of an axopodium. |
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binary fission |
a mode of asexual reproduction in which an animal splits into two approximately equal offspring. |
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chromatin |
The nucleoprotein material of a chromosome; the hereditary material containing DNA. |
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Cilium
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A hairlike, vibratile organelle process found on many animal cells. Cilia may be used in moving particles along the cell surface or, in ciliate protozoans, for locomotion. |
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Commensalism |
A relationship in which one individual lives close to or on another and benefits, and the host is unaffected, often symbiotic.
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conjugation |
Temporary union of two ciliate protozoa while they are exchanging chromatin material and undergoing nuclear phenomena resulting in binary fission. Also, formation of cytoplasmic bridges between bacteria for transfer of plasmids. |
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cytoproct |
Site on a protozoan where undigestible matter is expelled |
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cytopyge |
In some protozoa, localized site for expulsion of wastes. |
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cytosome |
The cell mouth in many protozoa. |
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Fission |
Asexual reproduction by a division of the body into two or more parts. |
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Flagellum |
Whiplike organelle of locomotion. |
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Gametic meiosis |
Meiosis that occurs during formation of the gametes, as in humans and other metazoa. |
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Holozoic feeders |
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hydrogenosome |
An anaerobic cellular organelle persumed to be derived from a mitochondrion. |
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isogametes |
Gametes of a species in which gametes of both sexes are alike in size and appearance. |
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kinetosome |
The self duplicating granule at the base of the flagellum or cilium, similar to centriole, also called basal body. |
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lysosome |
Intracellular organelle consisting of a membrane enclosing several digestive enzymes that are released when the lysosome fuses with vesicles or endosomes produced as a result nof endocytosis. |
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mutualism |
A type of interaction in which two different species derive benefit from their association and in which the association is necessary to both; and often symbiotic. |
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osmotrophs |
A heterotrophic organism that absorbs dissolved nutrients. |
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parasitism |
The condition of an organism living in or on another organism as whose expense the parasite is maintained; destructive symbiosis. |
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phagocytosis |
The ingestion of bacteria or other material by phagocytes and amoeboid protozoans.
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phagosome |
A membrane bound vesicle found in a cell by an inward folding of the cell membrane to hold foreign matter taken into the cell by phagocytosis.
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phagotroph |
An organism that ingests nutrients by phagocytosis. |
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saprozoic nutrition |
Nutrient substances that are derived from dead organic matter. |
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Syngamy |
The fusion of two cells or of their nuclei in reproduction. |
