Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
a special layer of cells at the base of a leaf's petiole that severs the leaf from the stem as the plant prepares for winter
|
abscission layer
|
|
|
a special petal-like leaf that flows at the base of a flower or on its stalk
|
bracts
|
|
|
the shell-like fruit covering of a wheat grain
|
bran
|
|
|
the inedible parts of cereal grains that are separated by threshing or winnowing; same as husk
|
chaff
|
|
|
the branch of chemistry that seeks to use substances in farm and forest products as raw materials for manufacturing other products
|
chemurgy
|
|
|
a temporary state of inactivity
|
dormancy
|
|
|
a tissue which surrounds the developing embryo of a seed and provides food for its growth
|
endosperm
|
|
|
the union of sex cells (sperm and egg) to form a new organism
|
fertilization
|
|
|
in botony, a ripened ovary and its contents, together with any other flower parts that may adhere to it
|
fruit
|
|
|
the sprouting or growth of a spore, seed, or bud
|
germination
|
|
|
a gray, sticky mixture of several proteins that is found in wheat and other cereal grains; its elastic texture allows bread to rise in the presence of yeast
|
gluten
|
|
|
an agricultural technician who specializes in growing flowers, fruits, vegetables and shrubs
|
horticuluturist
|
|
|
() an organism with two different genes for a particular trait; a heterozygous organism; (2) an organism that is a crossbreed between two different species of animals or plants; hybrids within a single kind (such as wolfdogs) are usually fertile, whereas hybrids between different kinds are sterile (such as mules)
|
hybrid
|
|
|
any arrangement of flowers in a cluster on a stem
|
inflorescences
|
|
|
a member of the pea family, characterized by dry fruits borne in pods, many are nitrogen-fixing
|
legume
|
|
|
the sweet-tasting, sugary liquid produced by plants
|
nectar
|
|
|
the response of an organism to variations in the intensity of light or to varying periods of light and darkness
|
photoperiodism
|
|
|
the central, vase-shaped structure of a flower that contains the female reproductive organs; consists of the stigma, style, and ovary
|
pistil
|
|
|
(1) in plants, the enlarged base of a pistil that contains the future seeds (ovules) of the flower;(2) in animals and people, the reproductive organ of the female that produces eggs (ova) and female hormones (estrogen)
|
ovary
|
|
|
tiny capsules that contain the male reproductive cells (sperm) of a flower
|
pollen
|
|
|
the transfer of pollen grains from an anther to the stigma portion of a pistil
|
pollination
|
|
|
leaflike structures attached to the edge of the receptacle of a flower that enclose and protect the flower's petals
|
sepals
|
|
|
any of the brightly colored leaflike structures that are the most conspicuous part of many flowers
|
petals
|
|
|
collective term for the petals of a flower
|
corolla
|
|
|
the production of offspring through the union of male (sperm) and female (egg) sex celss
|
sexual reproduction
|
|
|
the male reproductive part of a flower, comprising the anther and filament
|
stamen
|
|
|
the enlarged structure at the tip of a stamen that produces pollen
|
anther
|
|
|
(1) the slender, elongated stalk of a flower's stamen that supports the anther; (2) a chain of algae or other colonial cells attached end to end
|
filament
|
|
|
(1) the sticky tip of a flower's pistil; functunes to capture pollen during pollination; (2) a red eyespot in certain algae or protozoa
|
stigma
|
|
|
in botony, the stalklike part of the pistil of a flower that connects the ovary to the stigma
|
style
|
