most flexible thin walled cells found throughout a plant.

are plant cells that often are elongated and occur in long strands or cylinders that provide support for the surrounding cells.

plant cells that lack cytoplasm and other living components when they mature but their thick rigid cell walls remain.

regions of rapidly dividing cells.

a think cylinder of meristematic tissue that can run the entire length of roots and stems.

produces cells that develop tough cell walls.

the layer of cells that makes up the outer covering on a plant is dermal tissue.

the two cells that form a stoma.

the water carrying vascular tissue composed of specialized cells.

tubular cells that are stacked end to end forming strands of xylem called vessels.

are long cylindrical cells with pitted ends.

contains cytoplasm but lacks a nucleus and ribosomes when it is mature.

has a nucleus and helps flowering the plant.

consist of parenchyma, collenchyma, and sclerenchyma cells and have diverse functions including photosynthesis storage and support.

helps protect the root tissues as the root grows.

it is composed of ground tissue made of parenchyma tissues made of parenchyma cells that are involved in transport and storage of plant substances.

at the inner boundary of the cortex is a layer of cells.

the layer of cells directly next to the endodermis toward the center of the root.

depending on the plant species, the blade might be attached to the stem by a stalk.

they contain many chloroplast and make up the tissue.

consisting of irregularly shaped loosely packed cells with spaces surrounding them.

water evaporates from inside the cell of a leaf to the outside through stomata.

one of the first plant hormones to be identified.

the only known gaseous hormone.

growth reducing cytokinins are produced in rapidly dividing cells.

a plant response that causes movement that is not dependent on the direction of the stimulus.

a plants growth response to an external stimulus.

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CH. 22 Vocab

vocabulary

Question	Answer
parenchyma cell	most flexible thin walled cells found throughout a plant.
collenchyma cell	are plant cells that often are elongated and occur in long strands or cylinders that provide support for the surrounding cells.
sclerenchyma cell	plant cells that lack cytoplasm and other living components when they mature but their thick rigid cell walls remain.
meristem	regions of rapidly dividing cells.
vascular cambium	a think cylinder of meristematic tissue that can run the entire length of roots and stems.
cork cambium	produces cells that develop tough cell walls.
epidermis	the layer of cells that makes up the outer covering on a plant is dermal tissue.
guard cell	the two cells that form a stoma.
xylem	the water carrying vascular tissue composed of specialized cells.
vessel element	tubular cells that are stacked end to end forming strands of xylem called vessels.
tracheid	are long cylindrical cells with pitted ends.
phloem	the main food carrying tissue.
sieve tube member	contains cytoplasm but lacks a nucleus and ribosomes when it is mature.
companion cell	has a nucleus and helps flowering the plant.
ground tissue	consist of parenchyma, collenchyma, and sclerenchyma cells and have diverse functions including photosynthesis storage and support.
rootcap	helps protect the root tissues as the root grows.
cortex	it is composed of ground tissue made of parenchyma tissues made of parenchyma cells that are involved in transport and storage of plant substances.
endodermis	at the inner boundary of the cortex is a layer of cells.
pericycle	the layer of cells directly next to the endodermis toward the center of the root.
petiole	depending on the plant species, the blade might be attached to the stem by a stalk.
palisade mesophyll	they contain many chloroplast and make up the tissue.
spongy mesophyll	consisting of irregularly shaped loosely packed cells with spaces surrounding them.
transpiration	water evaporates from inside the cell of a leaf to the outside through stomata.
auxin	one of the first plant hormones to be identified.
gibberellins	the group of plant hormones.
ethylene	the only known gaseous hormone.
cytokinin	growth reducing cytokinins are produced in rapidly dividing cells.
nastic response	a plant response that causes movement that is not dependent on the direction of the stimulus.
tropism	a plants growth response to an external stimulus.

Created by: brettpedigo1

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