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Lecture Outline_Plant Tissue System

Lecture Outline_Plant Tissue System - BIS1C Professor S...

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BIS1C Professor S. O’Neill 1 Lecture Outline Topic 4: Plant Tissue Systems I. Introduction: Building a Plant II. Meristems give rise to Primary Tissues (three) III. Organization of the Three Primary Tissues A. Refer to “The Flowering Plant Body, with Cross Sections” Handout IV. We will examine Each Tissue System separately: A. Dermal B. Ground C. Vascular V. The plant body has five levels of complexity: A. Whole Plant B. Shoot and root systems C. Organs 1. Stems, roots, leaves, flowers D. Tissues (“tissue systems”) E. Cells 1. Cell types (~40 different cell types) VI. All levels of complexity are ultimately derived from the apical meristems: A. Shoot apical meristem (SAM) B. Root apical meristem (RAM). VII. Function of meristems: A. Cell division (increase in cell number) 1. Initials (remain capable of cell division) 2. Derivatives (many fates) (a) Cell elongation then differentiation. B. SAM and RAM give rise to the three “Primary Meristems.” VIII. Primary Meristems produce: A. Primary tissues (continuous throughout the plant) B. Primary cells.
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