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Chapter 23 plants
plants
| Question | Answer |
|---|---|
| meristematic tissue | plant tissue found only in the tips of shoots and roots; responcible for plant groth. |
| apical meristem | group of ndifferentiated cells that divide to produce increaced length of stems and roots. |
| collenchyma | type of ground tissue with a strong, flexible cell wall; helps support larger plants |
| companion cell | phloem cell thatsurrounds sive tube elements. |
| cuticle | in plants, a thick, waxy layer on exposed outer surfaces of cells that protects them aginst water loss and injury. |
| epidermal cell | cell that makes up the dermal tissue, which is the outer covering of the plant. |
| meristematic tissue | plant tissue found only in the tips of shoots and roots; responcible for plant groth. |
| parenchyma | type of ground-tissue cell with a thin cell wall ans a large ceneral vacuole. |
| sclerenchyma | type of ground-tissue with an extremely thick,rigid cell wall that makes ground tissue tough and strong. |
| sieve tube element | phloem cell that is joined end-to-end to similar cells to form a continous sivev tube |
| trichome | tiny cellular projection on the serfaces of some leaves that help protect it and give it a fuzzy apperence. |
| vassel element | in angiosperms;xylem cell that forms part of a continuous tube through which water can move. |
| casparian strip | waterproof strip that surrounds plant endodermis cells. |
| cortex | spongy layer of ground tissue ust inside the epidermis of a root |
| endodermis | layer of cell that completely encloses vascular tissue. |
| fibrous root | part of a root aystem in which roots branch to such an ectent that no single root grows larger than the rest. |
| rootcap | though structure that protects a root as it forces its way through the soil. |
| root hair | tiny projection from the outer surface, or epidermis, of a root. |
| taproot | primary root found in some plants that grows longer ans thicker than other roots. |
| vascular cylinder | centeral region ofa root that includes the vascular tissue- xtlem and phloem. |
| xylem | vascular tissue that carries water upward from the roots to every part of a plant. |
| bark | tree structure that includes all tissue outside the vascular cambrium, including phloem, the cork cambrium, and cork |
| bud | plant structure containing undeveloped tissue that can produce new stems and leaves |
| cork cambrium | lateral meristematic tissue that produces the outer covering of stems. |
| heartwood | older xylem near the center of the a woody stem that no longer conduct water |
| internode | region between nodes and plants sems |
| node | point on a stem where a leaf is attached |
| pith | parenchyma cell inside the ring of a vascular tissue in dicot stems |
| primary groth | type of plant groth that occors at tips of roots and shoots |
| snapwood | area in plants that surrounds heartwood and is active in fluid transport |
| secondary groth | pattern of plant groth in which stems increce in width |
| vascular bundle | plant stems structure that contains xylem and phloem tissue |
| ascular cylinder | centeral region of a root that includes the vscular tissue-xylem and phloem |
| blade | thin,flattened section of a plant leafthat collects sunlight |
| guard cell | specialized cell in the epidermis of plants that controls the opening and closing of stomata by responding to changes in water pressure |
| mesophyll | specialized ground tissue that makes up the bulk of most leaves; preforms most of the plants photosynthesis |
| palisade mesophyll | layer of tall, collum-shaped mesophyll cell just under the upper epidermis of a leaf |
| petiole | thin stalk by which a leaf blade is attached to a stem |
| spongy mesophtll | loose tissue beneath the palisade layer of the leaf; has many air spaces between cells |
| stoma | opening in the underside of a leaf that allows carbon dixoide and oxygen to diffuse into and out of the leaf |
| transpirtation | loss of water from a plant through its leaves |
Created by:
ncholas
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