MIC 541-Exam 5-Mycology 9
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Where are Fungi found in nature?
Are most fungi detrimental or beneficial?
What are examples of the usefulness of fungi?
- Degrade organic debris
- Pharmacological agents
What other group of organisms do Fungi have the most in common with?
What characteristics do fungi share with animals?
What type of cells do fungi have?
What type of metabolism do Fungi have?
- A heterotrophic, eukaryotic organism that does not contain chlorophyll
- Obtains food by absorption
- Reproduces via spores
What is the primary carbohydrate storage molecule of fungi?
Describe the morphology of a fungus:
Thalus composed of hyphae that elongate from the tip
Describe the diversity of fungi:
Second most diverse group (second to insects)
When did fungi first appear on earth?
- ~1 billion years ago
- Before vascular plants and animals
What percent of plant diseases are fungi?
How many species of fungi exist?
- 80,000 currently
- 1,700 new per year
Do fungi have locomotion structures?
What do fungi have in their cell membranes?
Do fungi have adherence structures?
How many species of fungi are associated with human diseases?
What are normal flora fungi?
Where are pathogenic fungi found?
In the environment
Do fungi have cell walls?
What are the cell walls of fungi made of?
What is Chitin?
The cell wall component of Fungi made of a NAG polymers
Do fungi have capsules?
What are capsules for fungi made of?
- Polysaccharide (mannans and glucans)
- Complexed with proteins
What are the two classifications of Fungi?
What is the shape of a yeast cell?
Round or oval/Single celled
What is the shape of a mold cell?
How do molds reproduce?
Sexually and asexually via spores
What is a mass of mold filiments called?
Wht is a mycelium?
A mass of mold filiments
What is a dimorphic fungi?
One that can exist as a mold or a yeast
What temperature do dimorphic fungi grow at in hyphae form?
25 degrees C
What temperature do dimorphic fungi grow at in yeasts form?
37 degrees C
What examples of dimorphic fungi were given in class?
What type of fungi are Blastomyces, Coccidomyces and Histoplasma?
What are the four methods of reproduction for fungi?
- Spore formation
What is the method reproduction for molds?
What is the main method of reproduction for yeasts?
What is fragmentation?
A method of reproduction for a hypha, where the hyphae breaks apart
Is pathogenicity of fungi a necessity for maintenance?
No, pathogenicity is not needed for most fungi
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