BISC 101 Study Guide - Final Guide: Pith, Vascular Cambium, Dicotyledon
9 Dec 2017
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Lab 7 - bisc 101 plant overview, roots, and stems: describe the structure and function of plant tissues (xylem, phloem etc. Structure: thin cell walls, rapid cell , sensitive to changes. Function: produce new cells that can differentiate other types. Structure: single, densely packed layer of cells, secrete waxy layer (cuticle) Function: forms protective layer on outer surface of plant. Structure: thin cell wall, lacks differentiation, contains lrg. vacuoles/chloroplasts, sensitive to signals. Function: store energy, perform photosynthesis, can differentiate into other cells under specific chem/hormonal signals. Function: provides support to structure while still allowing continual growth. Structure: dead cells w thick secondary cell walls with lignin. Function: provides hard, rigid, physical support to plant. Structure: dead cells with secondary cell walls heavily thickened with lignin, cells in network of interconnected tubes. Function: conducts water and nutrients from roots to leaves/ physically supports plant body.
