BIOL 1010 Study Guide - Synapomorphy, Charophyta, Sporopollenin
27 Mar 2014
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Document Summary
Shared derived characters of all plants starch as carbohydrate storage molecule amylose (straight) amylopectin (has branches) chlorophyll b accessory pigment (as well as chl a) cellulose in cell wall polysaccharide (made of many sugars like starch) most organic thylakoids stacked special membranes ancestors of land plants. Antheridia: environmental conditions (male or female) mega big spores micro small spores nonvascular plants liver worst, mosses, hornworts conifer dominate all seed plants are hertosporous reproduction in seed plants seeds and pollen found at the same time pollen allows sperm to be carried (doesn"t require water) seeds can go off and wait for conditions pterophyta ferns, horsetails etc. Ovoule: meiosis megaspore(female) gamephyte seed megaspore grows a large amount of tissue embryo gametophyte (food supply) seed coat (female) embryophtes=land plants homospory and hertospory both are multicellular homosporous (mosses most ferms) hertosporous (some ferms all seed plants)
