BIOL 1002 Chapter : Chapter 43 Plant Anatomy Outline
Document Summary
>organisms must: obtain energy, obtain water and other nutrients, distribute water and nutrients, exchange gases, support the body, grow, reproduce. >the basic design of land plants has two parts: shoot system. I. e. celery; leaves & stems can photosynthesis as well as store food root system. For the angiosperms the two variation of this basic design are seen in the two classes (monocots & dicots). *dicots have the potential to thicken as they grow* Plants produce new cells in special regions called meristems: grows upwards & downwards. Meristem cells ( forever young ), are undifferentiated (totipotent) embryonic cells. This means the cells have not become specialized. *can become any type of cell in the plant* Once plant cells mature they become differentiated cells and usually don"t divide again. Plant growth is mainly vertical and as a result plants grow longer not wider. This is the result of the location of the meristems. Meristems are found at both ends of the plant.
