Lab 33 Flashcards
eukaryotic cells that can be unicellular or multicellular, and obtain nutrients by absorbing dissolved organic material through their cell walls and plasma membranes.
fungi
Fungi, with the exception of ____, are aerobic
yeasts
generally grow better in more acidic conditions and tolerate higher osmotic pressure and lower moisture. larger than bacteria
fungi
nonfilamentous, unicellular fungi that are typically spherical or oval in shape. frequently found on fruits and leaves as white powdery coating.
yeasts
when buds fail to detach themselves in yeast, a short chain of cells forms
pseudohypha
multicellular filamentous fungi
molds
macroscopic mold colongy
thallus
mass of strands that forms the thallus
mycelium
each strand of a mold
hypha
strands of mold that grow in or on the surface of the growth medium
vegetative hyphae
aerial hyphae that originate from the vegetative hyphae
reproductive hyphae
produced by reproductive hyphae
spores
cross wall that separates individual mold cells
septum
hyphae that contain a cross wall
septate hyphae
hyphae that lack septa and are continuous mass of cytoplasm with multiple nuclei
coenocytic hyphae
fungi are classified into phyla based on similarities in their ___
rRNA
fungus-like algae
oomycota
motile asexual spores formed by fungus-like algae
zoospores
members of phylum are saprophytic molds that have coenocytic hyphae
zygomycota
obtains its nutrients from dead organic matter, and usually do not cause disease
saprophyte
zygomycota spore sac
sporangium
zygomycota asexual spores formed inside the spore sac
sporangiospores
zygomycota sexual spores formed by the fusion of two cells
zygospores
include molds with septate hyphae and some yeasts. called sac fungi
ascomycota
ascomycota sexual spores
ascospores
ascomycota spore sac
ascus
saprophytic molds (penicillin, aspergillus) usually produce _____ asexually
conidiospores
include the fleshy fungi, or mushrooms
basidiomycota
basidiomycota sexual spores
basidiospores
club-shaped stalk that produces sexual spores in basidiomycota
basidium
majority of the fungi classified, few are pathogens
saprophytes
selective medium commonly used to culture fungi, has low pH that inhibits growth of other organisms, and simple nutrients
sabouraud agar
nutrients in sabouraud agar
glucose and peptone