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31 Cards in this Set
- Front
- Back
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Monocots |
One cotyledon, vanished in leaves are parallel, the flowers are in multiples of three, and the vascular bundles are scattered. |
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Dicots have |
Two cotyledons, netlike veins in leaves, usually four or five flowers, and the vascular bundles are in a ring |
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Root system |
Part of plant underground |
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Shoot system |
Part of plant above the ground |
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Plant Tissues |
Epidermal, ground, and vascular tissue |
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Epidermal tissue |
Forms the outer protective covering of the plant (cuticles, root hairs, stomata, cork) |
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Ground tossue |
Fills interior of plant (bulk of plant) |
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Vascular tissue |
Transports water and nutrients, provides support (xylem and phloem) |
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Root hairs |
Increase surface area to volume ratio, constantly replaced |
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Perennials |
Plants that die and regrow the next season, store photosynthesis products in their roots |
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Organization of roots |
Zone of cell division, zone of elongation, zone of maturation. |
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Zone of cell diviison |
Cells are continuously added to root cal, push through soil and need replacing |
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Zone of elongation |
Cells become longer and more specialized |
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Zone of maturation |
Cells are fully differentiated. |
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Mycorrhizae |
Fungus in roots. Recieve carbs and amino acids from plants which recieve after and minerals by fungi |
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Root nodules |
Nitrogen fixing bacteria infiltrate root tissues. |
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Node |
Where leaves are attached |
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Internode |
Region of stem between nodes |
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Shoot apical meristem |
Produces new cells that elongate and lengthen stem |
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Axillary buds |
Usually dormant but can develop into branch shoots or flowers |
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Herbaceous atems |
Mature non woody stems |
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Vascular cambium |
Produces secondary xylem and secondary phloem |
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Organization of leaves |
Epidermis, mesophyll (spongy or palisade) |
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Epidermis |
Often bears protective hairs or glands |
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Mesophyll |
Have two distinct regions and sites of photosynthesis |
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Palisade mesophyll |
Elongated cells |
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Spongy mesophyll |
Loosely spaced irregular cells; increase surface area for gas exchange |
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Positive phototropism |
Grows towards the light |
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Negative phototropism |
Growth away from light |
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Statoliths |
Root cap cell sensors |
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Thigmoyropism |
Unequal growth due to contact with solid objects Cells opposit of touch wall will elongate. |
