Kingdom: Fungi
Eukaryotes
Domain
Bacteria
AP Biology
Domain
Archaebacteria
Domain
Eukaryotes
2007-2008
Common ancestor
General characteristics
 Classification criteria
eukaryotes
 heterotrophs

 must feed off of others

mostly multicellular
 except one-celled yeasts

AP Biology
cell wall
Structure
 Cells
long thread-like cells
 multiple nuclei
 cell wall

 made from chitin
 just like crab shells
chitin cell wall
septum
pore
nuclei
AP Biology
How do Fungi get their Nutrition?
fungal cells
 Heterotrophs
secrete digestive enzymes
 absorb digested material
into cell

 predators
plant cell
membrane
 paralyzing prey
 parasites
 feeding on living creatures
 decomposer
 breakdown dead remains
AP Biology
Cool…
Fungi live IN
their food!
Chocolate cake,
anyone?
plant
cell wall
plant cell
Ecological Roles
 Decomposers

recycle nutrients
 Symbiotic Relationships

lichen
 fungi + algae
 pioneer species in
ecosystems
 makes soil from bare rock

mycorrhizae
 fungi + plants
AP Biology
 enables plants to absorb more water
Mycorrhizae
 Critical role in plant growth

extends water absorption of roots
without
mycorrhizae
Endomycorrhiza
AP Biology
Ectomycorrhiza
with
mycorrhizae
Reproduction
 Asexual

budding in yeast
 Sexual

gills on
mushroom
mushroom
spores
 spread by wind
spores
on gills
AP Biology
fungus
growing
in soil
Fairy Rings
AP Biology
Importance of fungi to humans
 Food production
bread
 beer, wine

 Medicine production

antibiotics
penicillin
AP Biology
Any
Questions??
AP Biology
2007-2008
Zygomycete (Bread Mold) Life Cycle
spores
mating strain
hypha
sporangium
MEIOSIS
(2n)
diploid
AP Biology
(n)
haploid
FUSION of
gametangia
mating strain