Lecture 15 Flashcards
1
Q
What do decomposers do
A
- break down complex organic compounds into inorganic forms (decompose plant matter)
- nutrient & CO2 cycling
2
Q
What do parasites do
A
absorb nutrient from cells of living hosts
3
Q
what do mutualists do
A
absorb nutrient from host but give something back
4
Q
What are the cell walls of fungi made of
A
Chitin
5
Q
What are the bodies of most fungi composed of
A
hyphae
6
Q
What does mycelium act as
A
a feeding network
7
Q
Are the spores of fungi produced by meiosis or mitosis
A
both
8
Q
what do spores produce
A
hyphae, also always haploid
9
Q
What are the five phyla of fungi
A
- Phylum Chytridiomycota
- Phylum Zygomycota
- Phylum Glomeromycota
- Phylum Ascomycota
- Phylum Basidiomycota
10
Q
What is myco
A
fungus
11
Q
Characteristics of Chytridiomycota
A
- mainly freshwater
- free living chytrids digest dead organic matter
- Parasitic chytrids digest tissues of living hosts
- chytrids implicated in global decline of amphibians
12
Q
Characteristics of Zygomycota
A
- Live in soil & organic remains
- the mold you see on strawberries
13
Q
Characteristics of Phylum Glomeromycota
A
- they all form mutualistic relationships with plant roots
14
Q
Characteristics of Ascomycota
A
- AKA Sac-fungi (pathogens, decomposers, mutualists)
- range in size (unicellular & multicellular)
- defining feature: sexually produced spores in sac-like asci
- largest species of fungi
15
Q
Characteristics of Phylum Basidiomycota
A
- Sexual reproductive structure is the basidium
- important decomposers of dead plant matter (lignin)
- many parasists
- cap contains gills which are lined with basidia
