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ch 22 vocab

vocab

TermDefinition
parenchyma cell flexible thin walled cells found throughout a plant
collenchyma cell plant cells that often are elongated and occur in long strands or cylinders
sclerenchyma cell provide support for the plant and some are used to transport materials within the plant
meristem
vascular cambium
cork cambium
epidermis
guard cell
xylem
vessel element
tracheid
phloem
sieve tube member
companion cell
ground tissue
root cap
cortex
endodermis
pericycle
petiole
palisade mesophyll
spongy mesophyll
transpiration the disolving of water in the cell
auxin It was one of the first plant hormones to be identified and it is produced in apical meristems ,buds, young leaves, and other rapidly growing tissues. Auxin usually stimulates the lengthening or elongation , of cells.
gibberellins Causes cell elongation stimulates cell division and affects seed growth.
ethylene it is simple compound composed of two carbon and four hydrogen atoms , found in plant tissue such as ripening fruits dying leaves and flowers it is also a gas.
cytokinin is produced in rapidly dividing cells. cytokinins promote cell division by stimulating the production of the proteins needed for mitosis and cytokinesis.
nastic response A plant response that causes movement that is not dependent on the direction of stimulus.
topism is a plants growth response to an external stimulus
Created by: jasontom
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