click below
click below
Normal Size Small Size show me how
Plant Unit
Review of key plant unit terms
Question | Answer |
---|---|
cuticle | the waxy, waterproof layer that covers the leaves and stems of some plants |
tissue | a group of cells that perform a specific function in an organism |
vascular tissue | the internal transporting tissue in some plants that is made up of tubelike structures |
fertilization | the joining of a sperm cell and an egg cell |
zygote | a fertilized egg, produced by the joining of a sperm and an egg |
gamete | a sperm cell or an egg cell |
phloem | the vascular tissue through which food moves in some plants |
xylem | the vascular tissue through which water and nutrients move in some plants |
seed | the plant structure that contains a young plant inside a protective covering |
germination | the early growth stage of the embryo plant in a seed |
embryo | the young plant that develops from a zygote |
stomata | the small openings on the undersides of most leaves through which oxygen and carbon dioxide can move |
transpiration | the process by which water is lost through a plant’s leaves |
gymnosperm | a plant that produces seeds that are not enclosed by a protective covering |
cone | the reproductive structure of a gymnosperm |
pollen | tiny particles produced by plants that contain the microscopic cells that later become sperm cells |
ovule | a plant structure in seed plants that contains an egg cell |
pollination | the transfer of pollen from male reproductive structures to female reproductive structures in plants |
angiosperm | a plant that produces seeds that are enclosed in a protective structure |
ovary | a protective structure in plants that encloses the developing seeds |
flower | the reproductive structure of an angiosperm |
petal | one of the colorful, leaflike structures of a flower |
sepal | a leaflike structure that encloses the bud of a flower |
stamen | the male reproductive parts of a flower |
pistil | the female reproductive parts of a flower |
sporophyte | the stage in the life cycle of a plant in which the plant produces spores for reproduction |
gametophyte | the stage in the life cycle of a plant in which the plant produces gametes, or sex cells |
cotyledon | a seed leaf that stores food |
cambium | the layer of cells in a plant that produces new phloem and xylem cells |
root cap | a structure that covers the tip of a root, protecting the root from injury |
fruit | the ripened ovary and other structures that enclose one or more seeds of an angiosperm |
dicot | an angiosperm that has two seed leaves |
monocot | an angiosperm that has only one seed leaf |