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14 Cards in this Set
- Front
- Back
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4 traits that connect land plants with charophyceans
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(1) rose shaped complexes for cellulose synthesis (2) peroxisome enzymes (3) structure of flagellated sperm(4) formation of phragmoplast
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sporopollenin
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layer of durable polymer that prevents exposed zygotes from drying out; enabled move from water to land
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derived traits of plants
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(1) apicla meristem (2) alternation of generations (3) walled spores produced in sporangia (4) multicellular gametangia (5) multicellular & dependent embryos (6) cuticle (7) secondary compounds--> branches off of primary metabolic pathways, i.e. alkaloids are defense mechanisms
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seed
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embryo packaged with a supply of nutrients (old sporangia) inside a protective coat
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gymnosperms
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a vascular plant that bears naked seeds-seeds not enclosed in specialized chambers
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angiosperms
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flowering plants with seeds developed inside chambers called ovaries, which originate into fruits
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xylem
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conducst water and minerals across traechids
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traechids
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tube shpaed cells taht carry water and minerals up form roots
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lignin
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strengthens water conducting cells and provides structural support
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phloem
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consist of living cells and distributes sugars, amino acids, and other organic products
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archegonia
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female gametangia of bryophytes
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antheridia
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male gametangia in bryophytes; needs water to transfer sperm to egg in archegonia
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seed plant reproductive adpatations (3)
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(1) reduction of gametophyte-allowed to stay inside female for protection & nutrition (2) advent of seed-protection & food (3) evolution of pollen- resistant & airborne for terrestrial environment so no need for water
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fruit
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mature ovary; protects dormant seeds and aid in dispersal (made for water or transportation via air); sporangia inside provides nutrition
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