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| Cell that makes up the dermal tissue, which is the outer covering of a plant. |
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| In angiosperms, xylem cell that forms part of a continuous tub through which water can move. |
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| Phloem cell that is joined end to end to similar cells to form sieve tubes. |
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| Phloem cell that surrounds sieve tube elements. |
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| Type of ground tissue cell with a thin cell wall and large central vacuole. |
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| Type of ground tissue cell with a strong flexible cell wall; helps support larger plants. |
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| Type of ground-tissue cell with an extremely thick, rigid cell wall that makes ground tissue tough and strong. |
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| Cluster of tissue that is responsible for continuing growth throughout a plant's lifetime. |
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| Plant tissue found only in the tips of shoots and roots: responsible for plant growth |
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| Group of undifferentiated cells that divide to produce increase length of stems and roots. |
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| Process in which cells become specialized in structure and function. |
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Definition
| primary root found in some plants that grows longer and thicker than other roots. |
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| Part of a root system in which roots branch to such an extent that no singe root grows larger than the rest. |
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Definition
| Tiny projection form the outer surface or epidermis of a root. |
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Definition
| Spongy layer of ground tissue just inside the epidermis of a root. |
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Definition
| Innermost germ layer of most animals; develops into the linings of the digestive tract and much of the respiratory system. |
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Definition
| Central region of a root that includes the vascular tissue-xylem and phloem. |
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Definition
| Tough structure that protects a root as it forces its way through the soil. |
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Definition
| Waterproof strip that surrounds plant endodermis. |
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Definition
| Point on a stem where a leaf is attached. |
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Definition
| Region between nodes on plant stems. |
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Definition
| Plant structure containing undeveloped tissue that can produce new stems and leaves. |
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Definition
| Plant stem structure that contains xylem and phloem tissue. |
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Definition
| Parenchyma cells inside the ring of vascular tissue in dicot stems. |
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Definition
| Type of plant growth that occurs at the tips of roots and shoots. |
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Definition
| Pattern of plant growth in which stems increase in width. |
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Definition
| Lateral meristematic tissue that produces vascular tissues and increases the thickness of the stem over time. |
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Definition
| Lateral meristematic tissue that produces the outer covering of stems. |
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Definition
| Older xylem near the center of a woody stem that no longer conducts water. |
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Definition
| Area in plants that surrounds Heartwood and is active in fluid transport. |
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Definition
| Tree structure that includes all tissues outside the vascular cambium, including phloem, the cork cambium and corks. |
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Definition
| Thin, flattened section of a plant leaf that collects sunlight. |
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Definition
| Thin stalk by which a leaf blade is attached to a stem. |
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Definition
| Specialized ground tissue that makes up the bulk of most leaves: performs most of a plant;s photosynthesis. |
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Definition
| Layer of tall, column-shaped mesophyll cells just under the upper epidermis of a leaf. |
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Definition
| Loose tissue beneath the palisade layer of a leaf. |
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Definition
| Opening in the underside of a leaf the allows carbon dioxide and oxygen to diffuse int and out of the leaf. |
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Definition
| Specialized cell in the epidermis of plants that controls the opening and closing of stomata by responding to changes in water pressure. |
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Definition
| Loss of water from a plant through its leaves. |
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Definition
| Attraction between molecules of different substances: in plants, attraction between unlike molecules. |
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Definition
| Tendency of water to rise in a thin tube. |
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Definition
| Hypothesis that considers plants in terms of where they produce and use materials from photosynthesis. |
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