Vocabulary Review Ch 28 – Plant Evolution and Classification A waxy or fatty and watertight layer on the external wall of epidermal cells Cuticle.

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Vocabulary Review
Ch 28 – Plant
Evolution and
Classification
A waxy or fatty and
watertight layer on
the external wall of
epidermal cells
Cuticle
A reproductive cell or
multicellular structure that
is resistant to
environmental conditions
and that can develop into
an adult without fusion
with another cell
Spore
A plant embryo that
is enclosed in a
protective coat
Seed
The specialized
conducting tissue that
is found in higher
plants and that is
made up mostly of
xylem and phloem
Vascular tissue
The type of tissue in
vascular plants that
provides support and
conducts water and
nutrients from the
roots
Xylem
In vascular plants, the
tissue that carries organic
and inorganic nutrients in
any direction, depending
on the plant’s needs
Phloem
The three groups of
plants (liverworts,
hornworts, and mosses)
that lack specialized
conducting tissues and
true roots, stems, and
leaves
Nonvascular plant
A plant that has true roots,
stems, and leaves and a
vascular system composed
of xylem and phloem which
are specialized tissues that
conduct materials from one
part of the plant to another
Vascular plant
A plant that produces
seeds
Seed plant
A woody, vascular
seed plant whose
seeds are not
enclosed by an ovary
or fruit
Gymnosperm
A flowering plant that
produces seeds within
a fruit
Angiosperm
In plants and algae that
have alternation of
generations, the diploid
individual or generation
that produces haploid
spores
Sporophyte
In alternation of
generations, the phase
in which gametes are
formed; a haploid
individual that produces
gametes
Gametophyte
The alternation of
sexual reproduction and
asexual reproduction in
certain plants and
animals
Alternation of
generations
A plant that has no
vascular tissue and
absorbs nutrients and
water from the soil
through root-like hairs;
examples include mosses
and liverworts
Bryophyte
A member of the phylum
Hepatophyta, a unique
group of bryophytes that
grow close to the ground
in moist, shady areas and
that are characterized by
unique structures on the
gametophytes
Liverwort
A member of the phylum
Anthocerophyta, a unique
group of bryophytes that
grow close to the ground in
moist, shady areas and that
are characterized by long,
thin, photosynthetic
sporophytes
Hornwort
A cone-like structure
of sporangia-bearing
leaves
Strobilus
A horizontal,
underground stem
that provides a
mechanism for
asexual reproduction
Rhizome
The tightly coiled new
leaves of a fern
Fiddlehead
The leaf of a fern or
palm
Frond
To begin to grow
from an embryo into
a mature form
Germinate
A young plant grown
from a seed
Seedling
In plants, a seedbearing structure; in
animals, a
photoreceptor within
the retina sensitive
to bright light
Cone
A tree that sheds
and regrows its
leaves in response to
seasonal changes
Deciduous
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
The embryonic leaf
of a seed
Cotyledon
A monocotyledonous
plant; a plant that
produces seeds that
have only one
cotyledon
Monocot
A dicotyledonous plant;
an angiosperm that has
two cotyledons, net
venation, and flower
parts in groups of four
or five
Dicot
In plants, a bundle of
vascular tissue that
transports fluids and
nutrients; in animals,
a vessel that carries
blood to the heart
Vein
A parallel
arrangement of veins;
typical of the leaves
of monocots
Parallel venation
A nonparallel,
branching network of
veins that is typical
of the leaves of
dicots
Net venation

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