BIOL 150 Lecture Notes - Lecture 34: Ground Tissue, Plant Stem, Parenchyma
Document Summary
Controls whether other buds grow or not. Morphology (shape) of roots and leaves gives them a higher surface area/volume ratio. Increases surface area and allow them to be more efficient in photosynthesis, bringing in more co2. Ability to change the size and composition of chlorophylls in leaves, to help them function at their maximum. Complex tissues consisting of guard cells, epidermal cells, trichomes, and root hairs. Function: protection, gas exchange, protection, water, and nutrient. Worker cells, do photosynthesis; storage; production of molecules like pigments, hormones, and toxins. Synthesis and storage of sugars and other compounds. Transport of water and nutrients throughout the plant. Vessel elements (short and wide and have perforations as well as pits) Sugar and nutrient transport (back and forth, 2 way) Plant growth is accomplished from meristems, apical meristems are responsible for primary growth. Apical meristems are responsible for primary growth-- this extends the plant body.
