Lecture Test #2 (don't use, abandoned) Flashcards
Characteristics of Fungi
- Eukaryotic
- Cell wall of Chitin (heavy polysaccharide)
- Heterotrophic
- Some are parasites (ergot - wheat, corn smut)
- excellent Decomposer
- Converts organic matter into inorganic matter
- Recycles nutrients back into environment
- Can do Extracellular Digestion
- (see follow on card for Extracellular Digestion)
- Most parasitic fungi are parasitic of plants (few on animals)
- Asexual and sexual reproduction
- 1 million yet to be identified, most in soil.
Structures of Fungi
- Spores
- Mostly non-motile (except zoospores in Chytridio)
- Haploid
- Reproductive structures
- Found in spore sac
- Hyphae (hyphal filament)
- Threadlike filaments
- Collected creates mycelium
- Mycelium
- Mass of Hyphae
- Within the soil / wood (not seen)
- Fruiting body (collected hyphae above ground)
- Cap
- Gills
- Spores
Extracellular Digestion (Fungi)
(Characteristic of Fungi)
- Releases digestive enzyme
- Enzyme breaks down organic matter
- Matter releases nutrients
- Fungus / other plants feed on nutrients
Fungi parasitic to humans
- Athlete’s Foot
- Thrush (mouth)
- Yeast infections
2 Major groups of Fungi
- Myxomycota
- Water / slime molds
- Eumycota “true fungi”
- Chytridiomycota
- Zygomycota
- Ascomycota
- Basidiomycota
Chytridiomycota
- Oldest of fungal groups
- 1000 known in phylum
- Flagellated Zoospores(motile)
- Powerful decomposers
- Can digest cellulose, keratin, and chitin
- Partially responsible for decline in some amphibians
- (skin lesions on frogs, reduces frog skin’s gas exchange ability)
- E.g. Allomyces
Zygomycota
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Ascomycota
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Basidiomycota
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Symbiosis (and the 3 types)
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Bread Mold Lifecycle
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Mushroom Lifecycle
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Lichens (characteristics, locations, symbiosis type, which organisms?)
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3 types of Lichens
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Symbiosis Def.
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Saprobes
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Mycelium
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Hyphae
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Dikaryon Stage
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Which 2 phyla in Fungi have Dikaryon stage?
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Examples of beneficial fungi
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Bryophytes (characteristics)
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Plant adaptations for terrestrial habitats
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Difference between gemetophyte and sporophyte?
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What does gametophyte produce?
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What does sporophyte produce?
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Basics of Alternation of Generations
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Ferns (seedless vascular plants) - Characteristics
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Fern structures
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Advantages of ferns over bryophytes?
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Gymnosperm characteristics
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Function and location of (gymnosperm) megasporangium & microsporangium
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Megasporophyll
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Microsporophyll
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Monoecious
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Dioecious
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Generative nucleus
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Tube nucleus
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Generative nucleus produces what?
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Tube nucleus produces what?
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Megasporangium produces what?
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Microsporangium produces what?
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Which plant groups have swimming gametes?
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Which plant groups have vascular tissue?
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Which plant groups produce pollen?
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Which plant groups produce seeds?
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Which plant groups produce fruit?
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Characteristics / functions of Shoot and Root systems
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Parenchyma (characteristics / what produced?)
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Collenchyma (characteristics / what produced?)
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Sclerenchyma (characteristics / what produced?)
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Difference between Apical and Lateral Meristem?
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Xylem
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Phloem
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Function of vascular cambium? (monocots/dicots/both?)
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Ground Tissue
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Dermal Tissue
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Vascular Tissues
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Difference between Monocots and Dicots
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Leaf structure
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Identifying trees based on leaf shape and venation
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Gas exchange via stomata
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Mesophyll types and veins
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Why are leaves important to plants and trees?
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