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Chapter 7 questions
Microbiology
| Question | Answer |
|---|---|
| Explain the difference in meaning of heterotroph and saprobe | all fungi are heterotrophs--use living or dead organic material nutritionally. Saprobes--fungi that require their nutrients com specifically from dead organic material |
| List an important nonmedical role of fungi | break down organic material into forms that are reusable by other living things |
| Buds | round cells that grow on the side of the mother cell until they are ready to divide as new cells |
| Hyphae | long chains of connected cells |
| Mycelia | fuzzy masses of hyphae (mold) |
| Yeast | have single, round cells |
| Molds | grow in long chains |
| Mushrooms | often seen on dead or decaying organic material--have a slender stem and a rounded head with spores on top of it |
| How do septate and adeptate hyphae differ? | septate--have cross-walls separating individual cells---aseptate--lack cross-walls |
| What is the main function of fungal spores? | allow widespread dessemination of the organisms |
| What is the composition of fungal cell walls? | composed of the polysaccharide chitin |
| what is the major lipid of fungi that is usually not present in prokaryotic or human cells? | ergosterol |
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