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Definition
Pine Microsporangiate- Pollen cone
Ploidy:Stucture-2n diploid. Spores-1n Haploid
Alt of generations life cycle
Strobulius(male cone)- Sporophyte structure
possess sporophylls, arranged in spiral around a central axis. Each sporophyl possess sporangia.
Sporocytes in the sporangium undergo meiosis to make HAPLOID microspores. Microspores divide and become immature pollen spores (pollen grains with air sacs. |
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Term
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Definition
Nitella Sp(green algae): A Charophyte
Eukaryotic, multicellular, autotroph, freshwater, No vascular tissue, no Alt of gen, no micro/mega spores produced in sporangium, no free living sporophyte, free living gametophyte,has antheridia, no archegonia, yes motile sperm.
has separate gametes on different nodes, oogonia is egg(has corwn) and Antheridia makes sperm (circle).
Ploidy: haploid 1n
Major Gen: Multicellular gametophyte |
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Term
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Definition
Volvox sp (green algae): Colonial green algae
One-celled algae grouped in colonies
Eucarkyotic, colonial, autotroph, fresh water
contains 2 flagella facing outward |
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Term
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Definition
Ulva sp (green algae): Sea lettuce
Alt of gen-Haploidiatomic lifecycle:where gametes are nor direct result of meiosis, sporophyte undergoes meiosis to form spores which make up gametophyte.
Eukaryotic, Multicellular, autotroph, marine water, Alt of Gen, both gens free living, motile gametes, free swimming fertilization, no vascular tissue, no mega/ micro spores. |
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Term
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Definition
Fertil Fern: thelypteris kunthir
whole thing: sporophyll, the dots: sorus, the holder: sporangium, inside sporangium: spore. Have vascular tissue, Alt of gen, no micro/megaspores produced in sporangium, independent gametephyte and sporophyte, has antheridium and archegonia, has motile sperm. |
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