a waxy or fatty watertight layer on the external wall of epidermal cells.

one of many openings in a leaf or a stem of a plant that enable gas exchange to occur.

one of specialized cells that border a stoma and regulate gas exchange.

a conducting systen of tissues that transport water and other materials in plants or in animals.

the 3 groups of plants (liverworts, hormworts, & moses) that lack specialized conducting tissues and true roots, steams, and leaves.

plant that has a vascular system composed of xylem and phlomespecialized tissues that conduct materials from one part of the plant to another.

a plant embryo that is enclosed in a protective coat.

an organism in an early stage of development of plants and animals; in humans, a developing individual is referred to as an embryo from the second through the eighth week of pregnancy.

the reproductive structures of a flowering plant that usually consist of a pistil, stamens, petals, and sepals.

tissue that conducts food (sugars, amino acids, and mineral nutrients) in vascular plants.

tissue in which hard-walled cells transport water & mineral nutrients.

the portion of a plant that grows mostly above the ground; includes the stems & leaves.

the mainly underground organ of vascular plants that holds plants in place & absorbs & stores water & minerals from the soil.

a region of undifferentiated plant cells that are capable of dividing & developing into specialized plant tissue.

a rootlike structure in nonvascular plants, such as moses or liverworts, that holds the plants in place & acids in absorption.

cell organelle composed of RNA & protein

in plants, a seed-bearing structure.

woody vascular seed plant whose seeds are not enclosed by an ovary or fruit.

flowering plant that produces seeds within fruit.

triploid (3n) tissue that develops in the seeds of amniosperms & that provides food for a developing embryo.

monocotyledonous; a plant tht produces seeds tht have only orecotyledon.

a dictotyledonous plant; an organism tht has 2 cotyledous, netvenation, & flower plants in groups of 4 or 5.

any nonreprodutive part of a plant.

any grass tht produces grains tht can be used for food, such as rice, wheat.

the edible seed or seedlike fruit of a cereal grass.

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ch. 23

vocabulary ch. 23

Term	Definition
cuticle	a waxy or fatty watertight layer on the external wall of epidermal cells.
stoma	one of many openings in a leaf or a stem of a plant that enable gas exchange to occur.
guard cell	one of specialized cells that border a stoma and regulate gas exchange.
vascular system	a conducting systen of tissues that transport water and other materials in plants or in animals.
nonvascular plant	the 3 groups of plants (liverworts, hormworts, & moses) that lack specialized conducting tissues and true roots, steams, and leaves.
vascular plant	plant that has a vascular system composed of xylem and phlomespecialized tissues that conduct materials from one part of the plant to another.
seed	a plant embryo that is enclosed in a protective coat.
embryo	an organism in an early stage of development of plants and animals; in humans, a developing individual is referred to as an embryo from the second through the eighth week of pregnancy.
seed plant	plant that produces seeds.
flower	the reproductive structures of a flowering plant that usually consist of a pistil, stamens, petals, and sepals.
phloem	tissue that conducts food (sugars, amino acids, and mineral nutrients) in vascular plants.
xylem	tissue in which hard-walled cells transport water & mineral nutrients.
shout	the portion of a plant that grows mostly above the ground; includes the stems & leaves.
root	the mainly underground organ of vascular plants that holds plants in place & absorbs & stores water & minerals from the soil.
meristem	a region of undifferentiated plant cells that are capable of dividing & developing into specialized plant tissue.
rhizoid	a rootlike structure in nonvascular plants, such as moses or liverworts, that holds the plants in place & acids in absorption.
rhizome	cell organelle composed of RNA & protein
frond	leaf of a fern or palm.
cone	in plants, a seed-bearing structure.
gymnosperm	woody vascular seed plant whose seeds are not enclosed by an ovary or fruit.
angiosperm	flowering plant that produces seeds within fruit.
fruit	mature plant ovary.
endosperm	triploid (3n) tissue that develops in the seeds of amniosperms & that provides food for a developing embryo.
monocot	monocotyledonous; a plant tht produces seeds tht have only orecotyledon.
dicot	a dictotyledonous plant; an organism tht has 2 cotyledous, netvenation, & flower plants in groups of 4 or 5.
regetative part	any nonreprodutive part of a plant.
cereal	any grass tht produces grains tht can be used for food, such as rice, wheat.
grain	the edible seed or seedlike fruit of a cereal grass.

Created by: danapierce

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