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ch 25 vocabulary

vocabulary

TermDefinition
dermal tissue forms the protective outer layer of a plant
ground tissue makes up most of the inside of the nonwoody parts of a plant including roots stems & leaves
epidermis the outer surface layer of a cells of a plant or animal
cork the outer layer of bark of any woody plant
vessel in plants, a tubelike structure in the xylem that is composed in the xylem that is composed of connected cells that conduct water & mineral nutrients
sieve tube in the phloem of a flowering plant, a conducting tube that is made up of a series of sieve tube members stacked end to end
cortex in plants, the primarty tissue located in the epidermis
root hair an extension of the epidermis of a root that increases the roots surface area for absorption
root cap the protective layer of cells that covers the tip of a root
herbaceous plant that is soft & green instead of woody
vascular bundle in a plant, a strand of conducting tissue that contains both xylem & phloem
pith tissue that is located in the center of the stem of most vascular plants & that is used for storage
heartwood nonconducting older wood in the center of a tree trunk
sapwood tissue of the secondary xylem that is distributed around the outside of a tree trunk & is active in transporting sap
petiole stalk that attacks a leaf to the stem of a plant
mesophyll in leaves, the tissue between epidermal layers, where photosynthesis occurs
transpiration process by which plants release water vapor into the air through stomata
source a part of a plant that makes sugars and other compounds & from which these compounds are transported to other parts of the plant
sink any place where a plant stores or uses organic nutrients, such as sugar or starches
translocation movement of a segment od DNA from one chromosome to another, which results in a change in the position of the segment
Created by: danapierce
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