Lab 16 - Fungus Flashcards
Are fungi in bacteria, archaea, or eukaryota?
Eukaryota
Do fungi cells have chloroplasts?
NO
Are fungi autotrophic or heterotrophic?
heterotrophic
What are the walls of fungal cells made of?
chitin
Extracellular digestion
secretes enzymes to break down food into smaller particles
Absorptive nutrition
transports smaller food particles across cell wall and plasma membrane
How do fungi reproduce?
SPORES - they have mating types
Hyphae
each of the branching filaments that make up a mycelium
Mycelium
vegetative part of the fungus, consisting of a network of hyphae
Plasmogamy
fusion of cell cytoplasms
karyogamy
fusion of cell nuclei (fertilization)
Dikaryon
n + n (they not fusing bro)
Septate vs. aseptate (coenocytic)
aseptate - mycelium don’t have regular septa (seperation of the cells)
Lower fungi
no prolonged dikaryotic stage
coenocytic
along the tree, there occurs the loss of flagella
Higher fungi
dikaryotic stage
septate mycelium
What is special about phylum chytridiomycota?
they are flagellated
Phylum Zygomycota
haploid dominant life cycle
asexual: sporangium produces spores via mitosis (mitospores)
sexual: zygosporangium produces zygospores via meiosis (meiospores)
Gametangia
gamete producing structures
Phylum Glomeromycota
important plant mutualists
Phylum Ascomycota
Haploid dominant life cycle
dikaryotic stage present during sexual reproduction
Asexual: conidiospores produced at end of hypha through mitosis (mitospores)
Sexual: ascospores produced on the ascoma through meiosis (meiospores)
Phylum Basidiomycota
dikaryotic dominant life cycle
Asexual: most don’t do this
Sexual: basidiospores produced from basidia on the gills via meiosis
