Plant Life Cycle

Plant Life Cycle - Plant Lif Cycle-Lab Lecture 08:07:00 ←...

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Unformatted text preview: Plant Lif Cycle-Lab Lecture 23/03/2009 08:07:00 ← Charaphytes share the most recent common ancestor with land pants ← Common challenges living on land: • Desiccation • Competition for sunlight • Obtain water • structural support • Cross Fertilization and dispersal of zygote ← Land plants : mosses, ferns, Gymnosperm, Angiosperm • Apical meristem • Wall spores with spropollenin • Alternation of generation • Multicellular dependent embryo • Multicellular gametangia ← Ferns, Gymnosperm, Angiosperm (Vascular plants) • Vascular tissue • Sporophyte dominant • Multiple sporangia on sporophyte ← GymnoSperm, Angiosperm (Seed Plants) • Ovule/seed • Pollen grain • Reduce gametophyte ← Angiosperm • Fruit • Flower • Double Fertilization ← Alternation of Generation ← Two different kind of changes, haploid, diploid ← Spore(n)-->Gametophyte (n)-->Mitosis-->Gamete+Gamete-->Fertilization--...
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Plant Life Cycle - Plant Lif Cycle-Lab Lecture 08:07:00 ←...

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