Fungi - Bi Sci 001 Monday February 8, 1999 Announcements:...

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Bi Sci 001 Monday February 8, 1999 Announcements: Review Session tonight at 110 Wartick Lab, from 6:30-7:30 Lecture notes: Fungi General Characteristics They are all non-photosythetic (Heteroptrophs) They are multicelled. (2 exceptions) Most are saprophytes-feeding on the remains of dead organisms or the byproducts or organisms. Some are parasites-feeding on organic matter that is still part of a living host. 2 predators-Arthrobotrys dactyloides Each individual filament is a called a hypha(ae) * Some have crosswalls to separate cells. * In some, the walls between cells disappears. * All transport nutrients to other parts of the organism. Fungi are "World Class" decomposers They so 2 things "eat and reproduce" They can decompose almost anything organic from dead leaves to jet fuel. Because their "bodies" are so filamentous, they can survive where organic material is dilute or scarce. Digestion occurs outside the fungal body. EXTRACELLULAR DIGESTION Spore formation is part of the life cycle. Some fungi have a dikaryotic stage to the life cycle. A dikaryotic stage occurs when two
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Fungi - Bi Sci 001 Monday February 8, 1999 Announcements:...

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