Lab 7 - Fungi Flashcards
fungi have cell walls of
chitin
are fungi motile or non-motile
non-motile
how do fungi obtain nutrients
absorptive heterotrophs
hypha is a
long, branching, filamentous structure
types of hypha
- aseptate
- coenocytic
- septate
aseptate structure
has no cross walls
coenocytic structure
continuous mass of cytoplasm with many nuclei
septate structure
has cross walls present
A
Septate hypha
B
Coenocytic
what grows underground
the mycelium
mycelium
a mass of hyphae
what grows above ground
fruiting bodies
what are the reproductive structures
fruiting bodies
1
hyphae
2
reproductive structure (fruiting body)
3
mycelium
roles of fungi
- foods
- medicine
- alcohol
fungi are ______
decomposers
true or false
fungi form symbioses with other organisms
true (lichen and mycorrhizae)
can fungi be parasitic
yes
fungi undergo ______ meiosis
zygotic
fertilization becomes
- plasmogamy
- karyogamy
plasmogamy
fusion of cytoplasm
karyogamy
fusion of nuclei
plasmogamy or karyogamy
2n
karyogamy
plasmogamy or karyogamy
n+n
plasmogamy
spores make _____ by _____
multicellular haploid individual by mitosis
the multicellular haploid individual makes ____ by ____
gametes by mitosis
gametes make _____ by _____
diploid zygote by syngamy
zygote makes_____ by _____
spores by meiosis
only diploid stage in zygotic meiosis
zygote
asexual life cycle is _____
haploid (no meiosis)
what makes up the stages in the asexual life cycle
- spores undergo germination to make mycelium
- mycelium makes spore-producing structures
- spore-producing structures make spores
stages in the sexual life cycle
- some of the mycelia undergoes plasmogamy
- plasmogamy results in either a heterokaryotic or dikaryotic stage
- following that is karyogamy
- karyogamy makes a diploid zygote
- zygote undergoes meiosis to form spore-producing structures
- spore-producing structures make spores which germinate into mycelium
the phyla are named based on their
reproductive structures
Zygomycota unique structure
zygosporangium
Ascomycota unique structure
ascocarp
Basidiomycota unique structure
basidiocarp
what phyla does this life cycle represent
Basidiomycota
what phyla does this life cycle represent
Ascomycota
what phyla does this life cycle represent
Zygomycota
what phyla does this represent
zygosporangium - Zygomycota
what ascocarp is this shape
cleistothecium
what ascocarp is this shape
perithecium
what ascocarp is this shape
Apothecium
each ascus has _____ ascospores
8
lichen
symbiotic relationship between an ascomycete or basidiomycete and a green algae
three lichen growth forms
- crustose
- foliose
- fruticose
what lichen grow form is this
fruticose
what lichen grow form is this
foliose
what lichen grow form is this
crustose
what defines crustose lichen
thin
flat crust
what defines foliose lichen
flat and leafy
distinct upper and lower surface
what defines fruticose lichen
distinct strands with hair-like or shrub-like growth