2007-2008 AP Biology

Kingdom: Fungi

Eukaryotes

DomainBacteria

DomainArchaebacteria

DomainEukaryotes

Common ancestor

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General characteristics Classification criteria

eukaryotes heterotrophs

must feed off of others mostly multicellular

except one-celled yeasts cell wall

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Structure Cells

long thread-like cells multiple nuclei cell wall

made from chitin just like crab shells

septum

chitin cell wall

nucleipore

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plant cell

fungal cells

plant cellmembrane

plantcell wall

How do Fungi get their Nutrition? Heterotrophs

secrete digestive enzymes absorb digested material

into cell predators

paralyzing prey parasites

feeding on living creatures decomposer

breakdown dead remainsCool…

Fungi live IN their food!

Chocolate cake,anyone?

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Ecological Roles Decomposers

recycle nutrients

Symbiotic Relationships lichen

fungi + algae pioneer species in

ecosystems makes soil from bare rock

mycorrhizae fungi + plants enables plants to absorb more water

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Mycorrhizae Critical role in plant growth

extends water absorption of roots

withoutmycorrhizae

withmycorrhizae

EctomycorrhizaEndomycorrhiza

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Reproduction Asexual

budding in yeast

Sexual spores

spread by wind

sporeson gills

mushroom gills onmushroom

fungusgrowing

in soil

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Fairy Rings

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Importance of fungi to humans Food production

bread beer, wine

Medicine production antibiotics

penicillin

2007-2008 AP Biology

Any Questions??

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hypha

(n)haploid

(2n)diploid

mating strain

mating strain

FUSION ofgametangia

sporangium

spores

MEIOSIS

Zygomycete (Bread Mold) Life Cycle