BIOL 1002 Study Guide - Midterm Guide: Meristem, Vascular Cambium, Phloem
Document Summary
The basic design of land plants has two parts (see 43-1): For the angiosperms the two variation of this basic design are seen in the two classes (monocots versus dicots) (see fig. Dicots arranged in groups of four or five wider with netlike veins branching. Seed scattered vascular bundles ring of vascular bundles. The cells in these regions are meristem cells. This means the cells have not become specialized (like radial/indeterminate cleavage in animals). Once plant cells mature they become differentiated cells and usually don"t divide again. Plant growth is mainly two-dimensional (up and down) and as a result plants grow longer not wider. This is the result of the location of the meristem cells. Meristem cells are found at both ends of the plant. These cells at the root and shoot tips are the apical meristems (see figs 43-8 and 43-13) The growth that occurs at the apical meristem is called primary growth.
