From Bacteria to Plants - Chapter 5

30 terms by cryslyn 

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phloem

the vascular tissue through which food moves in some plants (141)

xylem

the vascular tissue through which water and nutrients move in some plants (141)

stomata

the small openings on the undersides of most leaves through which oxygen and carbon dioxide can move (144)

embryo

the young plant that develops from a zygote (142)

cotyledon

a seed leaf that stores food (142)

germination

the early growth stage of the embryo plant in a seed (144)

root cap

a structure that covers the tip of a root, protecting the root from injury (149)

transpiration

the process by which water is lost through a plant's leaves (146)

cambium

the layer of cells in a plant that produces new phloem and xylem cells (147)

seed

the plant structure that contains a young plant inside a protective covering (142)

gymnosperm

a plant that produces seeds that are not enclosed by a protective covering (150)

cone

the reproductive structure of a gymnosperm (152)

pollen

tiny particles produced by plants that contain the microscopic cells that later become sperm cells (152)

ovule

a plant structure in seed plants that contains an egg cell (153)

pollination

the transfer of pollen from male reproductive structures to female reproductive structures in plants (153)

angiosperm

a plant that produces seeds that are enclosed in a protective structure (156)

ovary

a protective structure in plants that encloses the developing seeds (157)

flower

the reproductive structure of an angiosperm (157)

petal

the colorful, leaflike structures of a flower (157)

sepal

a leaflike structure that encloses the bud of a flower (158)

stamen

the male reproductive parts of a flower (158)

pistil

the female reproductive parts of a flower (158)

fruit

the ripened ovary and other structures that enclose one or more seeds of an angiosperm (159)

monocot

an angiosperm that has only one seed leaf (157)

dicot

an angiosperm that has two seed leaves (157)

tropism

the growth response of a plant toward or away from a stimulus (164)

hormone

a chemical that affects growth and development (165)

auxin

the plant hormone that speeds up the rate of growth of plant cells (165)

genetic engineering

the process of altering an organism's genetic material to produce an organism with qualities that people find useful (169)

hydroponics

the method of growing plants in a solution of nutrients instead of in soil (170)

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