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Plant Structures STEMS By: Becky McGuire. Purposes a. attachment point for leaves, flowers, fruit b. contain food and water distribution system (vascular.

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Presentation on theme: "Plant Structures STEMS By: Becky McGuire. Purposes a. attachment point for leaves, flowers, fruit b. contain food and water distribution system (vascular."— Presentation transcript:

1 Plant Structures STEMS By: Becky McGuire

2 Purposes a. attachment point for leaves, flowers, fruit b. contain food and water distribution system (vascular bundles)

3 Vascular System a. xylem: water and nutrients taken from roots to leaves b. phloem: manufactured food distributed to all parts of the plants

4 Vascular System, cont. C. monocot: bundles scattered throughout stem D. dicots: segregated into circular pattern; separated by cambium layer (produces new xylem & phloem cells)

5 Structures a. nodes: point on a stem where a leaf attaches b. internode: area between nodes

6 Specialization a. food storage: tubers, corms, bulbs, rhizomes, grape tendrils b. rhizomes: run horizontally below ground; begonias, quackgrass c. stolons: stems growing along surface of ground and root at nodes; strawberries

7 Monocot Stem EPIDERMIS BUNDLE CAP XYLEM PHLOEM Vascular bundles in a scattered arrangement

8 Dicot Stem Epidermis Bundle Cap Xylem Phloem Cambium Layer Vascular bundles in a circular arrangement


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