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26 terms

Daniel's flas hcrads

Science vocab
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phloem
The vascular tissue through which food moves in some plants.
xylem
The vascular tissue through which water and nutrients move in some plants.
pollen
tiny particles produced by seed plants that contain the cells that later become sperm cells.
seed
The plant structure that contains a young plant inside a protective covering.
embryo
The young organism that develops from a zygote.
cotyledon
A seed leaf that sometimes stores food
germination
The sprouting of the embryo out of a seed; occurs when the embryo resumes its growth
root cap
A structure that covers the tip of a root, protecting the root from injury
cambium
A layer of cells in a plant that produces new phloem and xylem cells
stomata
the small openings on the surfaces of most leaves through which gases can move
transpiration
the process by which water is lost through a plant's leaves
angiosperm
a flowering plant that produces seeds enclosed in a protective structure
flower
the reproductive structure of an angiosperm
sepal
a leaf like structure that encloses the bud of a flower
petal
a colorful, leaf like structure of some flowers
stamen
The male reproductive part of a flower
pistil
The female reproductive part of a flower
ovary
a flower structure that encloses and protects ovules and seeds as they develop
fruit
the ripened ovary and other structures of an angiosperm that enclose one or more seeds
monocot
an angiosperm that has only one seed leaf
dicot
an angiosperm that has two seed leaves
tropism
A growth response of a plant toward or away from a stimulus
hormone
A chemical that affects growth and development
auxin
the plant hormone that speeds up the rate of growth of plant cells
photoperiodism
a plant's response to seasonal changes in length of night and day
short day plant
A plant that flowers when the nights are longer than the plant's critical night length