BIOL 102 Lecture Notes - Lecture 5: Cotyledon, Taproot, Eudicots
Document Summary
Leaves are the main photosyntheic organ of plants: consists of a latened blade and peiole which joins the leaf to the stem at the node. 3 main types of leaves: simple. One blade atached to peiole: compound. Muliple leaves together atached to single peiole: doubly compound. Many single compound lealets atached to a peiole. Xylem conducts water and minerals from roots to the shoots. Phloem transports sugars from shoots to the roots and developing leaves and fruit. Growth that occurs throughout the plants life. Meristems allow for plant"s indeterminate growth (meristemaic cells = undifereniated: apical meristems located at the ips of roots and shoot and allow the plant to grow in length. Primary growth is produced by apical meristems lengthening roots and shoots: lateral meristems vascular and cork cambium that allow for growth in thickness. Secondary growth is produced by lateral meristems thickening roots and shoots.
