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plant science terms
vocabulary
51
Plant Sciences
Beginner
11/02/2015

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Term
Annuals
Definition
A plant that completes its life cycle in a year
Term
binomial nomenclature
Definition
the system of nomenclature in which two terms are used to denote a species of living organism, the first one indicating the genus and the second the specific epithet
Term
carbohydrates
Definition
any various neutral compounds of carbon, hydrogen, and oxygen most of which are formed by green plants and which constitute a major class of animal foods.
Term
cell division
Definition
the division of a cell into two daughter cells with the same genetic material
Term
cell membrane
Definition
the semipermeable membrane surrounding the cytoplasm of a cell
Term
cell wall
Definition
a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants, it consists mainly of cellulose.
Term
chloroplast
Definition
a plastid that contains chlorophyll and in which photosynthesis takes place.
Term
compound leaf
Definition
a leaf of a plant consisting of several or many distinct parts (leaflets) joined to a single stem.
Term
cytoplasm
Definition
the material or protoplasm within a living cell, excluding the nucleus
Term
embryo
Definition
the part of a seed that develops into a plant, consisting (in the mature embryo of a higher plant) of a plumule, a radicle, and one or two cotyledons.
Term
endosperm
Definition
the part of a seed that acts as a food store for the developing plant embryo, usually containing starch with protein and other nutrients.
Term
epidermis
Definition
the outer layer of tissue in a plant, except where it is replaced by periderm
Term
fibrous root system
Definition
It is usually formed by thin, moderately branching roots growing from the stem.
Term
fibrous roots
Definition
It is usually formed by thin, moderately branching roots growing from the stem. A fibrous root system is universal in monocotyledonous plants and ferns.
Term
flowers
Definition
the seed-bearing part of a plant, consisting of reproductive organs
Term
germinating
Definition
(of a seed or spore) begin to grow and put out shoots after a period of dormancy
Term
herbaceous stem
Definition
The peony and the tree are both plants, but the peony is a herbaceous plant.
Term
leaves
Definition
a flattened structure of a higher plant, typically green and bladelike, that is attached to a stem directly or via a stalk. Leaves are the main organs of photosynthesis and transpiration.
Term
lipids
Definition
any of a class of organic compounds that are fatty acids or their derivatives and are insoluble in water but soluble in organic solvents. They include many natural oils, waxes, and steroids.
Term
meristem
Definition
a region of plant tissue, found chiefly at the growing tips of roots and shoots and in the cambium, consisting of actively dividing cells forming new tissue.
Term
nucleus
Definition
the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Term
nutrients
Definition
Plants must obtain the following mineral nutrients from the growing media: the primary macronutrients: nitrogen (N), phosphorus (P), potassium (K) the three secondary macronutrients: calcium (Ca), sulfur (S), magnesium (Mg)
Term
nutrients
Definition
Plants must obtain the following mineral nutrients from the growing media: the primary macronutrients: nitrogen (N), phosphorus (P), potassium (K) the three secondary macronutrients: calcium (Ca), sulfur (S), magnesium (Mg)
Term
organelles
Definition
any of a number of organized or specialized structures within a living cell
Term
palisade cells
Definition
Palisade cells are plant cells found within the mesophyll in leaves, right below the upper epidermis and cuticle.
Term
petals
Definition
each of the segments of the corolla of a flower, which are modified leaves and are typically colored.
Term
phloem
Definition
the vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves.
Term
photosynthesis
Definition
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.
Term
pistil
Definition
the female organs of a flower, comprising the stigma, style, and ovary.
Term
pith
Definition
soft or spongy tissue in plants or animals, in particular
Term
pollination
Definition
The transfer of pollen from the anthers of a flower to the stigma of the same flower or of another flower.
Term
pollination protein
Definition
the transfer of pollen from the anther to the stigma
Term
respiration
Definition
a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
Term
root
Definition
the part of a plant that attaches it to the ground or to a support, typically underground, conveying water and nourishment to the rest of the plant via numerous branches and fibers.
Term
root hairs
Definition
Term
root hairs
Definition
each of a large number of elongated microscopic outgrowths from the outer layer of cells in a root, absorbing moisture and nutrients from the soil.
Term
seed
Definition
a flowering plant's unit of reproduction, capable of developing into another such plant.
Term
seed covering
Definition
The outer protective covering of a seed.
Term
sepals
Definition
each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike.
Term
sepals
Definition
each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike.
Term
sepals
Definition
each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike.
Term
sepals
Definition
each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike.
Term
sepals
Definition
each of the parts of the calyx of a flower, enclosing the petals and typically green and leaflike.
Term
simple leaf
Definition
a leaf whose blade is not divided to the midrib even though lobed — compare compound leaf.
Term
stamen
Definition
the male fertilizing organ of a flower, typically consisting of a pollen-containing anther and a filament.
Term
stems
Definition
the main body or stalk of a plant or shrub, typically rising above ground but occasionally subterranean.
Term
tap root
Definition
a straight tapering root growing vertically downward and forming the center from which subsidiary rootlets spring.
Term
turgor
Definition
the state of turgidity and resulting rigidity of cells (or tissues), typically due to the absorption of fluid.
Term
vacuole
Definition
A cavity within the cytoplasm of a cell, surrounded by a single membrane and containing fluid, food, or metabolic waste
Term
veins
Definition
Veins provide support for the leaf and transport both water and minerals
Term
xylem
Definition
the vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem.
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