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Fungi
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General Characteristics
Heterotrophic- can get nutrition 2 ways 1. Produce an enzyme that digests organic material outside of the fungus. Then fungus absorbs the liquidated nutrients 2. Produce Haustoria- hyphae penetrate the host cell and suck up the nutrients directly form the host- doesn’t kill the host cell, just feed off it. (Parasitic) Decomposers-saprobe Live in moist ,cool environments
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Basic Structure Hyphae Group of Hyphae- called a mycellium
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Reproduction-2 ways Asexually-
a. through FRAGMENTATION where a piece breaks off and grows b. BUDDING- yeast pinch off a piece and become 2 cells
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Sexually- produce spores (Bread mold)
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4 Types of Fungi Imperfect: no observable sexual reproduction
Where spores produced Example Sporangium Sprorangia Bread Mold Club Mushroom Sac Truffles Imperfect: no observable sexual reproduction Deuteromycota: penicillin
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Plant Diseases Animal Mildew Wheat rust Athletes foot Candida albicans
Ringworm
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Lichen Special relationship between a fungi and algae
Mutualistic relationship Fungi provides safe place to live Algae provides food through photosynthesis
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Mycorrhizae Mutualistic relationship with plant
Fungi grow on roots of plants Fungi help increase the surface area at the roots so plants can absorb more water
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