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Biology Chapter 20 V

Chapter 20 Vocabulary

TermDefinition
Chitin A strong, flexible polysaccharide that is found in the cell walls of all fungi and in the exoskeletons of insects and crustaceans.
Hypha Filaments are the basic structural units that make up the body of a multicellular fungus.
Mycelium Hyphae grow at their tips and branch repeatedly to form a netlike mass.
Fruiting Body The fungus that you see above the ground is a reproductive structure.
Septum Hyphae are divided into cells by cross-walls.
Haustorium Many parasitic fungi produce specialized hyphae.
Spore A reproductive haploid cell with a hard outer coat that develops into a new organism without the fusion of gametes.
Sporangium A sac or case in which spores are produced.
Stolon Type of hypha formed by a mold that spreads over a foods surface.
Rhizoid Type of hypha formed by a mold that penetrates a foods surface.
Gametangium Reproductive hyphal structure of zygomycetes that contains a haploid nucleus.
Conidiophore Spore-producing hypha of sac fungi.
Ascocarp In sac fungi, the reproductive structure in which haploid nuclei fuse to from a zygote.
Ascus Spore-producing saclike structure of sac fungi.
Ascospore Spore produced by an ascus.
Basidiocarp Fruiting body of basidiomycetes.
Basidium Club-shaped, spore-producing hypha of basidiomycetes.
Basidiospore Haploid spore released by a basidium during reproduction.
Lichen Symbiotic relationship between a fungus and an alga or a photosynthetic partner.
Bioindicator Living organism that is sensitive to environmental conditions and is one of the first to respond to changes.
Mycorrhiza Symbiotic relationship betwee a specialized fungus and plant roots fungal hyphae help plants obtain water and minerals and plants supply carbohydrates and amino acids to the fungus.
Created by: Alayna Long
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