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Bio-Unit2-Plants

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Term
Definition
gymnosperm   a wood, vascular seed plant whose seeds are not enclosed by an ovary or fruit  
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angiosperm   a flowering plant that produces seeds within a fruit  
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dermal tissue   the outer covering of a plant  
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ground tissue   the type of plant tissue other than vascular tissue that makes up much of the inside of a plant  
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vascular tissue   the specialized conductive tissue that is found in higher plants that is made up of mostly xylem and phleom  
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xylem   the type of tissue in vascular plants that provides support and conducts water and nutrients from the roots  
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phloem   the type of tissue that conducts food (sugars, amino acids, nutrients) in vascular plants  
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cohesion-tension theory   theory that explains how the physical properties of water allow it to move through the xylem of plants  
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transpiration   the process by which plants release water vapor into the air through stomata  
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pressure-flow model   model for predicting how sugars are transported from photosynthetic tissues to the rest of the plant  
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vascular cylinder   center of a root or stem that contains the vascular tissue  
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primary growth   the growth that occurs as a result of cell division at the tips of stems and roots and gives rise to primary plant tissue  
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secondary growth   growth that results from cell division in the cambia, or lateral meristems, and that cause the stems and roots to thicken  
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blade   the broad, flat portion of a typical leaf  
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petiole   the stalk that attaches a leaf to the plant  
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mesophyll   in leaves, the tissue between epidermal layers, where photosynthesis occurs  
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guard cell   one pair of specialized cells that boarder a stoma and regulate gas exchange  
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Created by: lpgullett
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