BIOL 1002 Chapter : Chapter 43 Notes
Document Summary
The basic design of land plants has two parts (see fig. Dicots arranged in groups of four or five wider with branching netlike veins. For the angiosperms, the two variations of this basic design are seen in the two. Monocots arranged in group of three narrow with parallel veins. 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 fig. The growth that occurs at the apical meristem is called primary growth.
