Ch 31: Fungi Flashcards
Heterotrophs are fungi that
absorb nutrients and most are decomposers
Fungi are composed of
pyphe
Only some fungi have what stage
diekaryon stage
How do fungi undergo mitosis differently?
the molecular envelope doesn’t break down and mitosis occurs in the nucleus
What is Chitin
a tough resistant pollysacharide found in cell walls
What is Hyphae?
cell bodies that are long and slender filaments
What is Mycelium
group of Hyphae
What are septa?
cross walls that may separate some hyphae but rarely produce a barrier
What is Coenocytic hyphae?
they are hyphae that lack cepta and consist of a continuous cytoplasmic mass having thousands of nucli
What is Haustoria?
specialized hyphae that extract/exchange nutrients with host plant
Fungi Hyphae have reproductive mating types called
+ and -
Spores can be produced through
Mitosis and meioses
If compatible, the cytoplasm of two mating types fuse in a process called
plasmogomy
The nuclei don’t fuse right away creating a
Dikaron stage
Fungi that are Hetrokaryotic
are genetically different
Fungi that are Homokaryotic
are genetically the same
After some time, the two haploid nuclei fuse to form a ______ ________ in a process called ____________.
Diploid Neculeus, karyogamy
Meiosis restores the _________ condition as __________ are produced and germinate into ___________.
haploid, spores, Hyphae
Fungi can produce spores through ________ and the spores germinate into new ____________.
Mitosis, mycelum
What are Aquatic Fungi with Flagellated Zoospores called?
Chytridiomycetes
Chytridiomycetes are the only group to have..?
motial zoo spores (can move through water)
t or f Chytridiomycetes cause increase in amphibian population?
f - decrease
what is the Closest living relative to the fungal ancestor?
Chytridiomycetes
Zygomycetes are defined as
Fungi that Produce Zygotes
