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Moss/Rowlands Chapter 20
Protists
30
Biology
10th Grade
09/02/2014

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Term
Protist
Definition
Any organism that is not a plant.
Term
Pseudopods
Definition
temporary projection of cytoplasm, or a "false foot" used by some protists for feeding or movement.
Term
Amoecoid Movement
Definition
Type of locomotion used by amoebas.
Term
Food Vacuole
Definition
A small cavity in the cytoplasm that temporarily stores food.
Term
Cilia
Definition
Short hairlike projection similar to a flagellum: produces movement in many cells.
Term
Trichocysts
Definition
Very small, bottle-shaped structures used for defense.
Term
Macronucleus
Definition
The larger of a ciliate's two muclei, contains multiply copies of most of the genes that the cell needs in its day-to-day existence.
Term
Micronucleus
Definition
The smaller of a ciliate's two nuclei; contains a "reserve copy" of all of the cell's genes.
Term
Gullet
Definition
Indentation in one side of the ciliate that allows food to enter the cell.
Term
Anal Pore
Definition
Region of the cell membrane of a ciliate where waste-containing food vacuoles fuse and are then emptied into the environment.
Term
Contractile Vacuoles
Definition
Cavities in the cytoplasm that are specialized to collect water.l
Term
Conjugation
Definition
Form of sexual reproduction in which paramecia and some prokaryotes exchanges genetic information.
Term
Accessory Pigments
Definition
compound other than chlorophyll that absorb light at different wavelengths that chlorophyll.
Term
Eyespot
Definition
Helps the organism find sunlight to power photosynthesis.
Term
Pellicle
Definition
Cell membrane in euglenas.
Term
Phytoplankton
Definition
Population of algae and other small photosynthetic organisms found near the surface of the ocean and forming part of plankton.
Term
Phycobilins
Definition
Are especially good at absorbing blue light, enabling red algae to live deeper in the ocean than many other photosynthetic algae.
Term
Filaments
Definition
In algae, a long threadlike colony formed by many green algae: in plants, a long thin structure that supports an anther.
Term
Alternation of Generations
Definition
Process in which many algae switch back and fort between haploid and diploed stages of their life cycles.
Term
Gametophytes
Definition
Haploid, or gamete-producing, phase of an organism.
Term
Spores
Definition
Haploid reproductive cell.
Term
Sporophyte
Definition
diploid, or spore-producing, phase of an organism.
Term
Cellular Slime Molds
Definition
Slime mold whose individual cells remain separated during every phase of the mold's life.
Term
Acellular Slime Molds
Definition
Slime mold that passes through a stage in which its cells fuse to form large cells with many nuclei.
Term
Fruiting Body
Definition
Slender reproductive structure that produces spores and is found in some fungus like protiests; reproductive structure of fungus that develops from a mycelium.
Term
Plasmodia
Definition
Structure with many nuclei formed by acellular slime molds.
Term
Hypha
Definition
Tiny filament that makes up a multi cellular fungus or a water mold.
Term
Zoosporangiam
Definition
Spore case
Term
Antheridium
Definition
Male reproductive structure i some algae and plants.
Term
Oogonium
Definition
Specialized structure formed by hyphae that produces female nuclei.
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