Vocabulary Review Ch 30 – Plant Reproduction. A reproductive structure that produces male sex...
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Transcript of Vocabulary Review Ch 30 – Plant Reproduction. A reproductive structure that produces male sex...
![Page 1: Vocabulary Review Ch 30 – Plant Reproduction. A reproductive structure that produces male sex cells in flowerless and seedless plants Antheridium.](https://reader036.fdocuments.us/reader036/viewer/2022081513/551a5146550346a4248b60d2/html5/thumbnails/1.jpg)
Vocabulary Vocabulary ReviewReview
Ch 30 – Plant Ch 30 – Plant ReproductionReproduction
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A reproductive structure that
produces male sex cells in flowerless
and seedless plants
Antheridium
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A female reproductive structure of small, nonvascular plants
that produces a single egg and in which fertilization and
development take place
Archegonium
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The production of only one kind of
spore
Homospory
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A cluster of spores or sporangia
Sorus
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The smaller of the two types of
spores produced by most plants
that develops into the male
gametophyteMicrospore
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The larger of the two types of
spores produced by heterosporous plants; develops
into a female gametophyteMegaspore
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The production of two or more kinds of asexual spores
Heterospory
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The outer, protective
covering of a body, a body part,
an ovule, or a sporangium
Integument
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The small opening in the wall of an ovule through which a pollen tube enters the
ovule
Micropyle
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A structure in the ovary of a seed plant that
contains an embryo sac and that develops into a
seed after fertilization; in gymnosperms the ovule is found in the carpel and is structurally simple and
nakedOvule
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The structure that contains the male gametophyte of
seed plants
Pollen grain
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The transfer of pollen from the male
reproductive structures (the anthers) to the tip of
a female reproductive structure (the pistil) of a flower in angiosperms or
to the ovule in gymnosperms
Pollination
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A tubular structure that grows from a
pollen grain, enters the embryo sac, and
allows the male reproductive cells to
move to the ovule
Pollen tube
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The enlarged tip of a flower stalk to
which the flower is attached
Receptacle
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In a flower, one of the outermost
rings of modified leaves that protect
the flower bud
Sepal
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One of the usually brightly colored, leaf-shaped parts that make up one of the rings of a
flower
Petal
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The male reproductive
structure of a flower that produces pollen
and consists of an anther at the tip of a
filament
Stamen
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In flowering plants, the tip of a
stamen, which contains the pollen sacs where grains
form
Anther
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In flowers, the part of a stamen that supports the
anther
Filament
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The structure where the ovule is in flowering plants
Carpel
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The female reproductive part of
a flower that produces seeds and consists of an ovary,
style, and stigma, made of one or more
fused carpelsPistil
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In the female reproductive system of animals, an organ that
produces eggs; in flowering plants, the lower part of a pistil
that produces eggs in ovules
Ovary
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In plants, the slender, upper
part of the pistil
Style
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The expanded apex of a pistil,
supported by the style; the part of
the pistil that receives the pollen
Stigma
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In plants, the female gametophyte that develops from a megaspore; contains the ovum that fuses with a
sperm nucleus during fertilization to form an
embryo and seven other cells, including the polar bodies
that fuse with another sperm nucleus to form endosperm
Embryo sac
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One of the two haploid nuclei in the embryo sac of a seed plant
that fuse with a male gamete to form the
triploid cell that develops into the
endospermPolar nucleus
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The cell of a pollen grain that gives
rise to the pollen tube
Tube cell
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In a pollen grain, the cell that
divides mitotically and forms two
sperm cells
Generative cell
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A sugar-containing fluid secreted by flowers to attract
birds or insects for pollination
Nectar
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The process by which one of the two sperm nuclei
fuses with the egg nucleus to produce a
diploid zygote and the other fuses with the polar
nuclei to produce a triploid endosperm
Double fertilization
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The production of new individuals
Propagation
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The protective, outer covering of a
seed
Seed coat
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The developing shoot above the
cotyledons in plant embryos; consists of the epicotyl and
young leaves
Plumule
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The portion of the stem of a plant embryo that is between the
cotyledons and the first true leaves
Epicotyl
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The portion of the stem of a plant embryo that is between the
cotyledons and the embryonic root
Hypocotyl
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In plants, the embryonic, or primary, root
Radicle
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On a plant seed, a scar that marks where the seed was attached to the ovary wall
Hilum
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A state in which seeds, spores, bulbs, and other reproductive organs stop growth
and development and reduce their
metabolism, especially respirationDormancy
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An organism that is produced by asexual
reproduction and that is genetically identical to its parent; to make
a genetic duplicate
Clone
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A type of asexual reproduction in
which new plants grow from
nonreproductive plant parts
Vegetative Reproduction
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A root, stem, or leaf that is cut
from a living plant and that can
produce a new plant
Cutting
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The process of causing roots to form on stems or
branches of a plant that are
covered with soil
Layering
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A technique in which a portion of
one plant is attached to the root or shoot of
another plant and grows there
Grafting
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The technique for growing living
cells in an artificial medium
Tissue culture