Term
| True or false: Fungi are eukaryotes |
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Definition
| True, Fungi ARE eukaryotes |
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Term
| Defining characteristics of Fungi? |
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Definition
-Multicellular (except yeast)
-Chitin in cell wall
-Heterotrophic (absorption- exoenzymes) (saprotrophs- dead/decaying)
-Eukaryotic |
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Term
| Modes of nutrition for Fungi? |
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Definition
| Chemoheterotrophs, which means they get their energy and carbon source is organic compounds |
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Term
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Definition
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Term
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Definition
| -Condition in which fungi pass the resistance barriers of the human or animal body and establish infections |
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Term
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Definition
-Filament network that take up an enormous surface area.
-The cell walls are made of chitin |
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Term
| Process of sexual reproduction of Fungi? |
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Definition
1. Hyphae fuse
2. Cell becomes dikaryotic
3. Nuclei fuse creating a zygote (2n) then goes through meiosis making spore (1n)
4. The number of spores = trillions |
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Term
| Asexual reproduction in Fungi |
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Definition
| The nucleus in the sporangia undergoes several mitotic divisions to produce large number of spores. Spores are light and are dispersed easily by air currents as well as by animals, particularly insects. Spores represent a means of rapid multiplication of fungi. The spores formed in sporangia are called sporangiospores. A sporangiospore germinates to develop into an organism with many vegetative hyphae. Sporulation occurs in favourable conditions |
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Term
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Definition
-Possess hyphae but it has flagellated spores similar to slime molds and water molds
-There is metabolic and molecular evidence
-Saprobes
-Parasites |
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Term
| Zygomycota- ex: Bread mold |
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Definition
Life Cycle:
-Formation of a zygote
-Haploid
-Releases pheramones
-Cytoplasm fuses
-Once nucleoid fuses then you get a 2n cell (diploid) |
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Term
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Definition
| -Where two nuclei share the same cytoplasm |
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Term
| Ascomycota: sac fungi. ex: truffles morel |
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Definition
-Produces ascus (sac where spores develop)
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Term
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Definition
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Term
| Ascomycota: examples- Penicillium |
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Definition
-Yeast ferments, creating ethanol and CO2
-Saccharomyces cereviae is bread
Candida albicans- vaginal yeast infections |
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Term
| Ascomycota: examples- Claviceps purpurea |
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Definition
-Causes lysergic acid which causes hallucinations
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Term
| Acsomycota: examples- Cryphonectria parasitica |
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Definition
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Term
| Ascomycota: examples- Ophiostoma ulmi |
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Definition
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Term
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Definition
-Yeast are problematic
-There are about 500 species
-They are single celled
-They go through asexual budding
-Their cells fuse and become spore producing sacs |
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Term
| What percent of fungi make their licing as parasites or pathogens? |
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Definition
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