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Biology 11

Fungi

QuestionAnswer
Hyphae thread-like structures.
Many hyphae mycelium "fuzzy growth"
Acoenocytic contains cross walls called SEPTA
Coenocytic does not contain cross walls
Saprobe eats dead and decaying matter
Parasite in plants: attacks corn and wheat. In humans: athlete's foot, ringworm
Chemotaxis responsive Negative + positive
Negative chemotaxis Hyphae secrete chemicals to repel other Hyphae. Why? maximizing use of food source
Positive chemotaxis Hyphae secrete chemicals to attract other hyphae. Why? encourages union of hyphae for sex (genetic diversity)
Zygomycota Bread Mold. Reproduce asexually = sporangia. "Rhizopus Stolonifer"
Ascomycota Sac fungi. Fruiting body = ascocarp. Asexual: conidiophore. Sexual: ascus. "Penicillium"
Basidiomycota Club fungi. Reproductive organ: Basidia (located on gills) - sexual. Mushrooms.
Lichen association of a fungus with an autotrophic organism. Symbiotic relationshop, mutualistic. Grows on bare rocks, tree bark, (places where few organisms can grow) often first organism to inhabit an aera. Breaks down rocks by secreting acids
Created by: ybot
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