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Life Science

Life Science Ch.11 Vocabulary

TermDefinition
algae (singular alga) The group of protists characterized by chloroplasts, photosynthesis and a cell wall. Also called the "plant-like" protists.
amoeboid movement The process of alternating the areas of the cell membrane that bulge in and out, forming pseudopods and causing amoebas to move about in their environments.
cap The top of a mushroom.
chitin The carbohydrate that makes up the cell walls of Fungi.
colony Hundreds or more single cell organisms massed together in the same area often appearing as one single organism but each cell functions independently.
conjugation The form of sexual reproduction that paramecium perform.
filament A long "string" of algae cells that are connected to one another end to end.
fragmentation A type of asexual reproduction in which filaments break into two or more smaller filaments and continue to reproduce by mitosis.
germination The process of a seed or spore sprouting and growing into a new organism.
gills The slits in the underside of a mushroom, where spores are produced.
hyphus The basic cell that all Fungi are made up of.
lichens A symbiotic relationship between a species of Fungi and a species of algae.
mycelia The physical structure of a fungus is called a mycelia (rather than a "plant").
plankton The layer of small and microscopic organisms living in the sea and fresh water.
protists Single cell and "simple" multi-cellular eukaryotic organisms.
protozoa (singular protozoan) The group of protists characterized by no cell walls and no chloroplasts that have to ingest other organisms to obtain their energy. Also called the "animal-like" protists.
saprophytes The name for decomposers, meaning they obtain their nutrients by eating dead organic material.
slime molds The group of protists characterized by obtaining their nutrition by decomposing dead organisms. Also called the "fungus-like" protists.
sporangia The asexual reproductive structures of Fungi.
spore The single-cell structure used by Fungi to reproduce asexually.
stalk The "stem" of a mushroom.
stolons Mold hyphae that run along the surface of the bread.
symbiotic A relationship in which two organisms live closely together, and each organism benefits from the presence of the other.
yeasts Unicellular Fungi which live in moist environments.
Created by: kaisnead