Lab 20: Fungi and Lichens Flashcards
Fungi encompass a large group of________ ________, that must consume pre formed organic matter.
chemoheterotrophic eukaryotes
Fungi can live as _______ ______ and consuming ______ _____ and _______ or they can be ______
saprophytes digesting, dead plants, animals, parasites
The study of fungi is called
mycology
Examples of fungi include:
yeast, mold, slime molds, water molds, mushrooms, puffballs, and bracket fungi
yeast are _____
unicellular
Consist of a series of elongated tubular cells;
hyphae (hypha)
within hyphae, dividing them into separate cells
septate (septa), cross wall
a mass of hyphae that supports the nutrition of the organism
mycelium
The whole body of fungi is called;
thallus
Cells in the hyphae can be, ______, _____ or _____
unicellular, binucleate, multinuceleate
Non-septate multinucleate cells are said to be _____meaning many nuclei in a common cytoplasm.
coencytic
All fungi excrete digestive enzymes to
degrade and solubilize food and molecules so they can be taken up by fungal cell
Fungi are surrounded by a ______ ____ that is mostly made of
rigid cell wall .2 um thick, chitin
Fungi contain the same as
eukaryote
Diploid set of linear chromosomes coated with
histones
____- has a circular bacterial-type chromosome in addition to several plasmids
mitochondrion
Sexual reproduction involves the
union of two haploid cells
Fungi are
non-motile, non-photosynthetic, chemoheterotrophic
asexual reproduction is by
bud, conidiospores, arthrospores, etc
the three major groups of fungi are
Zygomycota (zygomycetes)
Ascomycota ( ascomycetes)
Basidiomycota ( basidiomycetes)
Mycelia/hyphae = no cross wall
Coenocytic multinucleate
Sexual reproduction by zygospores
non-sexual reproduction by sporangiospores
Zygomycota (zygomycetes)
Dimorphic fungi
causes disease in animals and humans
saprophytic
mold or mycelial form
Lichens
mutualistic association, yeast =dominate
Yeast, powdery mildew, etc
Mycelium & hyphae have a cross wall
sexual reproduction - ascospores formed with ascus
nonsexual reproduction is by conidiospores in a conidium by oidia (bud, binary fission)
Ascomycota
jelly fungi, rusts, smuts, mushrooms, puffball
sexual reproduction is by basidiospores produced in a basidium
homologous to the ascus
non-sexual is by bud, conidia, chlamydospores
Basidiomycota
Spore: Rhizopus, zygospores, sporangiospores
zygomycota
spore: peziza , condiaspores
Ascomycota
basidiospores, basidium, amanita
basidiomycota
pathogenic in animals
yeast
