BIOL 1015 Lecture Notes - Lecture 8: Meiosis, Flowering Plant, Gametophyte
4 Apr 2016
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Document Summary
True, and all of the sporophyte"s cells are diploid. Formation of an embryo from a parent ovule without fertilization (increases number of seeds produced) Suckers (from base of plant stem or roots) Female spore tiurns into female gametophyte (embryo sac) Male spore hits stigma and then he growsss. *iclicker* to be succesful, the spores of flowering plants germinate. Sperm with 2 polar nuclei = 3n = endosperm. *iclicker* inside palm trees, flower ovules are the protective habitat for the. *iclicker* which is a distinguishing feature of angiosperms. Ovary wall forms the vessel surrounding the seed. Take on many shapes and form to help disperse the seeds inside them. Fruits remain green, hard, sour, or closed before they become ripe. So they don"t attract animals before the seeds ate mature. Keep fruits from flying in the wind or otherwise dispoersing immature seeds. Unassisted: seeds do not have modifications for dispersal. Wind: seeds often attached to modified structures and blow off.
