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Fungi:Botany
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Fungi (3)
-mushrooms
-molds
-mildews
what is a fungus? (7)
-Eukaryotic
-mulitcellular (except yeast)
-absorbtion nutrition
-cell walls made of chitin
-storage material: glycogen
- Lack of organs
-reproduce by spores
General features of Fungi (4)
-hypha
-mycelium
-hymenium
-fruiting body
(funges) Reproduction by spores (3)
-spores are reproductive cells
-often only 1 cell big
-helps fungi survive
(fungus) Absorbtion nutrition (3)
-secretes enzymes outside of fungi
- break down materials externally, then absorbs fungus
(General features) Hypha (3)
-individual threads
a)
Multinucleate or Coenocytic
*no walls between cells
b)
Septa or cell walls
* fuzzy things
(General features) Mycelium
-mass of hyphae
(General features) Hymenium (2)
-area where spaces are formed
-fertile zone
(General features) Fruiting bodies
-reproductive structure
-bears spores
-ends in -carp (basidiocarp)
Classification hierachy of fungi
divisions ends in -mycota
Zygomycota
bread molds
Ascomycota
sac fungi
Basidiomycota
club fungi
Deutermycota
imperfect fungi
Division Zygomycota (4)
a) bread molds
b) no fruiting bofy
c) asexual reprodcution
*sporangium
: spores
*sporangiosphore
: stalk
d) sexual reproduction
*zygote (fertilized egg)
-inside a zygosporangium
Division Ascomycota (3)
a) sac or cup fungi
b) ascocarp
: fruiting body
-cup and other shapes
c) ascus (plural asci)
-sac-like hypha
-8 internal ascospores
Division Basidiomycota (3)
a) club or gill fungi
b) basidiocarp
: fruiting body
* not all look like mushrooms
c) basidium : club shaped hyphae, 4 external basidiospores
Division Deuteromycota
a) bue green molds
b) no sexual reproductive stage
C) asexual reporduction
*conidia (asexual spores) on conidiospores
ex) penicilun, aspergills
Negative aspects of fungi (2)
a) parasites
-living on live organisms
*fungi on people and plants
b) saprophytes
-living on dead organisms
*wastes, wood rot
Positive aspects of fungi
a) decomposers
-breaks down and recycle nutrients in soil
*saphrophytes
b) mutualists
-two organisms living together, benefitting
*lichens
: fungus gets food, algae get shelter
c) fungi as food
*yeasts and cheese
Author
efrain12
ID
144073
Card Set
Fungi:Botany
Description
fungi
Updated
3/27/2012, 1:45:22 AM
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