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Biology
WCHS Biology Chapter 20
| Word | Definition |
|---|---|
| Hypha | threadlike filaments that are the basic structural units of multicellular fungi |
| Mycelium | in fungi, a complex network of branching hyphae; may serve to anchor the fungus, invade food sources, or form reproductive structures |
| Chitin | complex charbohydrate that makes up the cell walls of fungi |
| Haustoria | in parasitic fungi, hyphae that grow into host cells and absorb nutrients and minerals from the host |
| Budding | type of asexual reproduction in unicellular yeasts and some other organisms in which a cell or group of cells pinch off from the parent to form a new individual |
| Sporangium | in fungi, a sac or case of hyphae in which spores are produced |
| Stolon | fungal hyphae that grow horizontally along a surface and rapidly produce a mycelium |
| Rhizoid | fungal hyphae that penetrate food and anchor a mycelium; secrate enzymes for extracellular digestion and absorb nutrients |
| Zygospore | thick-walled spores of zygamycetes that can withstand unfavorable conditions |
| Gametangium | structure that contains a haploid nucleus; formed by the fusion of haploid hyphae |
| Ascus | tiny, saclike structures in ascomycetes in which ascospores develop |
| Ascopore | sexual spores of ascomycetes fungi that develop within an ascus |
| Conidium | chains or clusters of asexual spores |
| Basidium | club-shaped hyphae of basidiomycete fungi that produce spores |
| Basidiospore | spores produced in the basidiomycetes during sexual production |
| Mycorrhiza | mutualistic relationship in which a fungus lives symbiotically with a plant |
| Lichen | organism formed from a symbiotic association between a fungus, usually an ascomycete, and a photosynthetic green algae or cyanobacteria |
| Conidiophore | in ascoymcetes, elongated, upright hyphae that produce conidiophores |