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Chapter 28 Section 1 - Plants
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16
Biology
9th Grade
09/20/2009

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Term
cuticle
Definition
a waxy protective covering that prevents water loss
Term
spore
Definition
a haploid reproductive cell surrounded by an hard, outer wall
Term
seed
Definition
a plant embryo surrounded by a protective coat
Term
vascular tissue
Definition
transports water and dissolved substances from one part of the plant to another
Term
xylem
Definition
vascular tissue that carries water and inorganic nutrients from the roots to the stems and leaves
Term
phloem
Definition
vascular tissue that carries organic compounds and some inorganic nutrients in any direction depending on the plant's needs
Term
nonvascular plants
Definition
three phyla of plants without vascular tissue or true roots, stems, and leaves
Term
vascular plants
Definition
nine phyla of plants with vascular tissue, roots, stems, and leaves
Term
seed plants
Definition
plants that produce seeds- four phyla of gymnosperms and one of angiosperms
Term
gymnosperms
Definition
four phyla of seed plants that produce seeds not enclosed in fruits, including pine trees
Term
angiosperms
Definition
flowering seed plants that produce seeds within a protective fruit
Term
diploid
Definition
two sets of chromosomes
Term
haploid
Definition
one set of chromosomes
Term
sporophyte
Definition
first phase of a plant's life cycle- diploid, produces spores
Term
gametophyte
Definition
second phase of a plant's life cycle- haploid plant producing egg and sperm
Term
alternation of generations
Definition
life cycle alternating between gametophyte and sporophyte phases
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