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22 Cards in this Set
- Front
- Back
Primary Root |
This is the first root that comes from the seed and is the biggest. |
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Secondary Root |
smaller root branches growing sideways from a primary root. |
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Runners |
slender stem producing roots, sometimes at the nodes. Examples of plants are strawberries. |
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Heartwood |
This tissue is the center of a stem. It does not transport minerals or water. It is more used as a type of support. |
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Taproot System |
root systems where the primary root and it is the dominant root, a very small secondary root may be present. |
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adventitious roots |
Adventitious roots are roots that develop from a part of a plant other than the root. Specialized roots that grow from stems and leaves |
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Pericycle |
a thin layer of plant tissue between the endodermis and the phloem. |
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Annual |
a flower that preforms their entire life cycle in one growing season. |
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Perennial |
Plants that persist for many growing seasons Plants that reproduce constantly every year |
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Tubers |
underground stems which grow along the ground producing shoots and roots at their nodes. White potatoes form an underground stem which is specialized for carbohydrate storage |
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Sap |
fluid within any part of a plant found mostly in xylem and phloem tissues. |
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Sapwood |
the younger, softer, outer wood in tree trunks that is important for transporting water and dissolved materials as well as for support |
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Cork cambium |
Lateral meristem that allows for secondary growth and becomes part of the periderm |
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root cap |
This is a loose mass of cells that form a protective cover for the apical meristems of most root tips. |
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Root hairs |
fibrous growths on a root that increase surface area for absorption. Root hairs are microscopic extensions of epidermal cells near the tip of a root. |
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Bark |
The outer covering of a tree. It is called a periderm as it replaces the epidermis (the outer cell layer). |
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Heartwood |
the dense inner part of a tree trunk, yielding the hardest timber. It is the center of a stem. It does not transport minerals or water. It is more used as a type of support. |
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Fibrous Roots: |
root system whose primary roots have disintegrated and have been replaced |
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Endodermis |
a layer of cells around the vascular cylinder, made up of rectangle-shaped cells (part of the cortex). The tissue control movement of substances in the plant. |
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Cork |
The periderm produced by cork cambium. |
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Herbaceous |
plants that die down completely (nothing left above ground) at the end of the growing season. They have green stems, no woody tissue. |
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Woody Stems |
Plants that have wood as their structural base (stem) and don't completely die down. example Trees |