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33 Cards in this Set
- Front
- Back
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fungi are
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non-motile, photosynthetic, chemoheterotrophic organisms
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the study of fungi is
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mycology
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some fungi are macroscopic called
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molds
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some fungi are microscopic called
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yeast
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algae are
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producers
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fungi cell walls are made of
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chitin; Glucans; mannans
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most fungi are__________that live on dead organic matter_______.
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saprophytes,decomposers
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fungi require food by
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absorption
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fungi are subdivided by
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type of sexual spore
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the imperfect fungi have
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no known sexual spore
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fungi dont require a lot of
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water, don't mind dehydration
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fungi are primarily
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terrestrial (live on land) and occur in a large variety of habitats
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fungi have been found in every enviroment where an______ ______ is available.
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organic carbon, source
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fungi is resistant to _______ in sunlight
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UV
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fungi can use many carbon sources
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leather,cork,hair,wax,ink,fuel plastics, ect
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fungi can live in high
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osmotic pressure
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fungi can live in temperature extremes
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a. Opt 20-35c
b.some can withstand pasteurization c.some can grow below 0c and above 100c ( hot springs and volcanos) |
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fungi can live in extreme ph.
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2.2-9.6 But opt. is ph5
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most molds are
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strict aerobic
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most yeast are
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facultative anaerobes
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some molds live in the intestinal tract are
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facultative anaerobes
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fungi can grow on substances with very low moisture content but prefer
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high humidity (70%).
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molds are
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filamentous (fussy)
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filaments are called
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hyphae
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masses of hyphae are called
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mycelium
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reproduvtive hyphae are specialized for reproduction
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sexual and asexual
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what are specialized for attaining nutrients
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vegetative hyphae
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hyphae may have crosswalls between cells called
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septate
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some hyphae lack crosswalls called
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aseptate/coenocytic
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some parasitic fungi have special hyphae called
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haustoria for penetrating, plant and animal cells.
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in the laboratory, fungi are usually grown from fragments obtained from a
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fungal thallus
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the portion of hyphae concerned with reproduction is the
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reproductive or aerial hypha.
so named because it projects above the surface of the medium on which the fungus is growing. aerial hyphae often bear reproductive spores |
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Saprophytes can have special hyphae callled
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rhizoids that anchor the fungus to a substrate
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