Plant Lab Assignment
RiverFlowsInYou
PlantLab-Stems_Spr_2020_online.pptxPlant Lab - Stems
BIOL 10
College of Alameda
Instructor:Wedaman
Stems
The transport system in vascular plants
The transport system in vascular plants happens in vascular tissue, which exists in two forms – xylem and phloem.
Both of these tissues are presented in a vascular bundle, which, in addition, will provide supporting and protective tissues.
Typical monocot stem – cross-section
https://www.sciencetopia.net/sites/default/files/ys%20of%20monocot.jpg
http://c8.alamy.com/comp/EAJXHJ/corn-stem-cross-section-with-typical-monocot-arrangement-of-vascular-EAJXHJ.jpg
Typical dicot stem – cross-section
http://kentsimmons.uwinnipeg.ca/cm1504/15lab404/1115dicot-xs.jpg
http://media.gettyimages.com/photos/at-35mm-picture-id139802698?s=612x612
Plants grow in two ways…
Primary growth results in the formation and lengthening of shoots and roots.
Apical meristems produce primary growth, giving rise to the primary plant body. All seed plants have a primary plant body.
(Roots also have an apical meristem)
Plants grow in two ways….
Secondary growth increases plant thickness.
Lateral meristems produce secondary growth, resulting in the secondary plant body. Secondary growth occurs in woody dicots, such as trees and shrubs. Monocots typically do not undergo secondary growth.
