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Chapter 22 Vocabu.
Biology 2 Vocabulary
| Question | Answer |
|---|---|
| Layer of parenchyma cells that covers the root tip and helps protect root tissues during growth. | Root Cap |
| Spherical, thin-walled cell found throughout most plants that can function in photosynthesis, gas exchange, protection, storage, and tissue repair and replacement. | Parenchyma Cell |
| Often elongated plant cell that provides flexibility for the plant, support for surrounding tissues, and functions in tissue repair and replacement. | Collenchyma cell |
| Plant cell that lacks cytoplasm and other living components when mature, leaving thick, rigid cell walls that provide support and function in transport of materials. | Sclerenchyma Cell |
| Region of rapid cell division in plants; produces cells that can develop into many different types of plant cells. | Meristem |
| Thin cylinder of meristematic tissue that produces new transport cells. | Vascular Cambium |
| Meristematic tissue that produces cells with tough cell walls that form the protective outside layer on stems and roots. | Cork Cambium |
| Dermal tissue that makes up a plant's outer covering. | Epidermis |
| One of a pair of cells that function in the opening and closing of a plant's stomata by changes in their shape. | Guard Cell |
| Vascular plant tissue that transports water and dissolved minerals away from the roots and throughout the plant and is composed of vessel elements and tracheids. | Xylem |
| Elongated, tubular plant cell that forms xylem strands (vessels) and conducts water and dissolved substances. | Vessel element |
| Long, cylindrical plant cell in which water passes from cell to cell through pitted ends. | Tracheid |
| Vascular plant tissue composed of phospholipid molecules arranged with polar heads facing the outside and non polar tails facing the inside. | Phloem |
| Non-nucleated, cytoplasmic cell of the phloem. | Sieve Tube Member |
| Nucleated cell that helps the mature sieve tube member function in transporting dissolved substances in the phloem of vascular plants. | Companion Cell |
| Plant tissue consisting of parenchyma, collenchyma, and sclerenchyma. | Ground Tissue |
| Layer composed of ground tissues between the epidermis and vascular tissue of a root. | Cortex |
| Cell layer at the inner boundary of the cortex; regulates the material that enters the plant's vascular tissues. | Endodermis |
| Plant tissue that produces lateral roots. | Pericycle |
| Stalk that connects a plant's blade to the stem. | Petiole |
| Leaf-tissue layer that contains many chloroplasts and is the site where most photosynthesis takes place. | Palisade Mesophyll |
| Loosely packed, irregularly shaped cells with spaces around them located below the palisade mesophyll. | Spongy Mesophyll |
| Process in which water evaporates from the inside of leaves to the outside through stomata. | Transpiration |
| Plant hormone that moves in only one direction away from the site where it was produced and can stimulate the elongation of cells. | Auxin |
| Group of plant hormones that are transported in vascular tissue and that can affect seed growth, stimulate cell division, and cause cell elongation. | Gibberellins |
| Gaseous plant hormone that affects the ripening of fruits. | Ethylene |
| Plant hormone that promotes cell division by stimulating production of proteins required for mitosis and cytokinesis. | Cytokinin |
| Reversible, responsive movement of a plant that occurs independent of the direction of the stimulus. | Nastic Response |
| Response to an external stimulus in a specific direction. | Tropism |
Created by:
rachel_tom
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