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19 Cards in this Set
- Front
- Back
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Name the 6 Characteristics of Plants
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Choloroplasts
Starch Cellulose in Cell Walls Cell plate Alternation of Generation Gametes produce gametangia |
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Taxonomy: Seedless Plants
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Bryophyta - Mosses
Hepatophyta - Liverworts Anthocerophyta - Hornworts |
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Taxonomy: Seed Plants: Gymnosperms
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Coniferophyta - Conifers
Cycadophyta - cycads Gingophyta - Ginko Gnetophyta - Gnetae |
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Taxonomy: Seed Plants: Angiosperms
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Anthophyta - Flowering Plants
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Name 5 Plant adaptions to Land
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1. Gametangium - protective cell layer of gametes and embryos to prevent drying.
2. Roots - absorb water and nutruients 3. Cuticle - prevents water loss 4. Spores - resistant to dissication 5. Seeds - carried several ways, allowed a period of dormancy, nutrition (endosperm) |
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Bryophytes: characteristics (5)
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1. Alteration of Generations
2. multicellular gametophyte is dominate 3. secual and asexual reproduction 4. require water for reproduction 5. lack vascular tissue therefore they are small |
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Division Hepatophyta: Structures
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thallus - leafy part w/ stalks
air pores - on upper surface which open into air chambers and allow carbon diioxide and oxygen gas exchange NO cuticle Rhizoids - roots for absorption/anchoring gammae cups - produce gammae |
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Division Hepatophyta: sexual reproduction/male
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antheridia - flat inverted cone on a stalk
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Division Hepatophyta: sexual reproduction/female
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archegonia - palm tree like on a stalk
have a neck canal where sperm swim to egg |
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Division Hepatophyta: Sporophyte stage
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sprorphyte developes from embryo
elater - cells which dislodge spores spore mother cells - make new gametes via mitosis |
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Division Bryophyta: Protonema
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first shoot from spore
it develops rhizoids and buds (which develope the gametophytes) |
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Division Bryophyta: Gametophytes mature into:
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Archegonia - female part between paraphyses, egg located in swollen part, neck canal
Antherida - male part between paraphyses, sperm is released when water lands on it |
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Division Bryophyta: Sporophyte Stage
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Developes from embryo. Spores are held in capsule on a shoot and surrounded by sterile archegonial cells.
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Division Tracheophytes: Characteristics
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Vascular seedless plants
ex. club mosses - Lycopodium (ground pine) ex. horsetails - Equisetum ex. ferns - whisk fern Contain Vascular tissues: xylem and phloem. Alternation of generations Sporophyte stage is slightly more dominate |
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Division Tracheophytes: Gametophyte Stage
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Protonema = prothallus - heart shape containing archegonia and antheridia and also has rhizoids
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Division Tracheophytes: Is water needed for reproduction?
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Yes
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Division Tracheophytes: Sporophyte Stage
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main body of a fern
developes from thalllus rhizome is an underground stem that produces fiddle head which unfolds into the frond |
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Division Tracheophytes: Sporophyte Stage: Frond
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a single compound leaf w/ pinnae projecting from single rachis
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Division Tracheophytes: Sporophyte Stage: Sori
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develope on under side of pinnae which are clusters of sporangia which produce haploid spore via meiosis
sporangia split opposite of annulus releasing spores |
