BIOL-1030 Lecture Notes - Lecture 16: Lignin, Herbaceous Plant, Vascular Cambium
16 Sep 2016
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Chapter 31 - plant structure growth and reproduction. Differences between human and plant cells: plants only have: cell wall, chloroplast, large central vacuole, animals only have : lysosomes, centrioles. 31. 2 the two major groups of angiosperms are monocots and (eu)dicots. Named for number of embryonic leaves ( cotyledons ) in seeds. Monocots : have one cotyledon (e. g. corn) Dicots : have two cotyledons (e. g. bean) 31. 3 a typical plant body contains three basic organs. From the main axis of the plant body. Supports and separates leaves, flowers and fruits - providing max sun exposure, pollinators and dispersal agents. Apical and axillary buds contain meristems : Contains vascular tissue that transports water, minerals, and assimilate throughout the plant. Lateral meristems - allow new growth in diameter or thickness. Vary widely in size, shape, texture and color. Transpire water via stomata for cooling, uptake/transport of minerals. Broad and thin to max sa for photosynthesis. A closer look a monocot and dicot stems.
