Part 4: Fungi. Traits Multicellular, eukaryotic, non-motile Cell walls made of chitin Heterotrophic...
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Transcript of Part 4: Fungi. Traits Multicellular, eukaryotic, non-motile Cell walls made of chitin Heterotrophic...
![Page 1: Part 4: Fungi. Traits Multicellular, eukaryotic, non-motile Cell walls made of chitin Heterotrophic (absorb food!) –Have filaments called hyphae…used.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f215503460f94c39e70/html5/thumbnails/1.jpg)
Part 4: Fungi
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Traits
• Multicellular, eukaryotic, non-motile
• Cell walls made of chitin
• Heterotrophic (absorb food!)– Have filaments called hyphae…used to anchor,
feed, & reproduce– Network of hyphae called a mycelium
• Habitat = everywhere! (but usu. moist areas)
![Page 3: Part 4: Fungi. Traits Multicellular, eukaryotic, non-motile Cell walls made of chitin Heterotrophic (absorb food!) –Have filaments called hyphae…used.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f215503460f94c39e70/html5/thumbnails/3.jpg)
Examples of Fungi
• Mushrooms
• Molds
• Yeast
• Shelf fungi
• Morels
• Lichen
![Page 4: Part 4: Fungi. Traits Multicellular, eukaryotic, non-motile Cell walls made of chitin Heterotrophic (absorb food!) –Have filaments called hyphae…used.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f215503460f94c39e70/html5/thumbnails/4.jpg)
Harmful Effects• Disease
– Athlete’s foot; yeast infections; toenail fungus; ringworm; etc
• Crop/food damage– Plants hit especially
hard– Cattle diseases
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Helpful Effects• Decomposers
– Break down dead stuff
• Some antibiotics (penicillin)
• Food products– Yeast = breads, beer, etc– Some cheeses; mushrooms
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The End
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How do fungi get their food?• Secrete enzymes into surrounding matter…
hyphae soak up nutrients
• Is extracellular digestion… absorb nutrients after they have been broken down
![Page 8: Part 4: Fungi. Traits Multicellular, eukaryotic, non-motile Cell walls made of chitin Heterotrophic (absorb food!) –Have filaments called hyphae…used.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f215503460f94c39e70/html5/thumbnails/8.jpg)
How do fungi get their food?
• Grouped according to where they get food:– Saprophytes…from dead stuff (ex: mold on food)– Mutualists…symbiotic relationship (ex: lichen)– Parasites…from living organisms (ex: toe fungus)
![Page 9: Part 4: Fungi. Traits Multicellular, eukaryotic, non-motile Cell walls made of chitin Heterotrophic (absorb food!) –Have filaments called hyphae…used.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f215503460f94c39e70/html5/thumbnails/9.jpg)
How do fungi reproduce?
• Asexually (no transfer of DNA)– Fragmentation –
pieces break off & grow into new fungi bodies
– Budding – new cell pinches off from old one (occurs in yeasts)
![Page 10: Part 4: Fungi. Traits Multicellular, eukaryotic, non-motile Cell walls made of chitin Heterotrophic (absorb food!) –Have filaments called hyphae…used.](https://reader035.fdocuments.in/reader035/viewer/2022070410/56649f215503460f94c39e70/html5/thumbnails/10.jpg)
How do fungi reproduce?• Sexually (transfer of DNA)
– Spores are reproductive cells that turn into new fungi bodies
– Very large # of spores made; are small & light for easy dispersal