1. Fill in the blank boxes Characteristic Chytridiomycota zygomycota ascomycota
ID: 63133 • Letter: 1
Question
1. Fill in the blank boxes
Characteristic
Chytridiomycota
zygomycota
ascomycota
basidiomycota
Common names?
Chytrids
zygomycetes
Sac fungi
Club fungi
Names of unique structures?
chytrids
zygosporangia
asci
basidiospore
Fruiting body name?
zoosporangium
zygosporangium
ascocarp
basidiocarp
Ploidy of hyphal nuclei?
Septate or aseptate hyphae?
Monokaryotic or dikaryotic?
dikaryotic
Instant or delayed karyogamy?
Where meiosis occurs?
No meiosis
Spores or hyphae
ascospores
No meiosis
Asexual or sexual spores or both?
asexual spores
asexual
asexual
Ploidy of spores?
Associates with what other organisms?
basidiomycota
2. Fungi often have important relationships with other organisms, as mutualists, parasites, or commensals. some species exhibit relationships that do not fall neatly into any of these categories, such as predation. provide examples of two different relationships that fungi have with other organisms. indicate the type of relationship(ex. mutualism, parasitism, predation..) and explain why it was classified as such.
3. fungal cell wall is made up of chitin. describe the chemical composition and properties of chitin that make it function as cell wall. do all the different major clades of fungi have chitin in their cell walls? what organisms can digest chitin? where else is chitin found in the living world?
Characteristic
Chytridiomycota
zygomycota
ascomycota
basidiomycota
Common names?
Chytrids
zygomycetes
Sac fungi
Club fungi
Names of unique structures?
chytrids
zygosporangia
asci
basidiospore
Fruiting body name?
zoosporangium
zygosporangium
ascocarp
basidiocarp
Ploidy of hyphal nuclei?
Septate or aseptate hyphae?
Monokaryotic or dikaryotic?
dikaryotic
Instant or delayed karyogamy?
Where meiosis occurs?
No meiosis
Spores or hyphae
ascospores
No meiosis
Asexual or sexual spores or both?
asexual spores
asexual
asexual
Ploidy of spores?
Associates with what other organisms?
basidiomycota
Explanation / Answer
2)
An example relationship between fungi and plants is Mycorrhiza and it is a mutualistic relationship. Another example of the relationship between fungi and bacteria (cyanobacteria) is lichen and it is also a mutualistic relationship. An example of the relationship between fungi Trichophyton and animals is called parasitism.
For example, the fungi Trichophyton cause athletes food disease in animals (humans), hence it only benefits from the association. Therefore, it is called parasitism. The Mycorrhiza gets food from plants and it fixes the nitrogen for plants. Here, both them benefiting, so it is called mutualism.
3)
Chitin is a homopolysaccharide, which is made up of repeating units of a glucose derived aminosugar called N-acetylglucosamine. The long fibers of chitin polymer form interconnection bonds, which makes it as a strong cell wall material. It is found in cell walls of fungi and the exo or endoskeletons of insects, arthropods, cephalopods and mollusks, etc.
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