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;
16 Cards in this Set
- Front
- Back
|
cytokinin
|
[Gk. kytos, hollow vessel, + kinesis, motion] A class of plant hormones that promotes cell division, among other effects
|
|
|
auxins
|
[Gk. auxein, to increase] A class of plant hormones that control cell elongation, among other effects
|
|
|
abscisic acid
|
[L. abscissus, to cut off] A plant hormone that brings about dormancy in buds, maintains dormancy in seeds, and brings about stomatal closing, among other effects
|
|
|
brassinosteroids
|
A group of growth-promoting steroid hormones in plants that play essential roles in a wide range of developmental processes, such as cell division and cell elongation in roots and stems, vascular differentiation, responses to light (photomorphogenesis), flower and fruit development, resistance to stresses, and senescence
|
|
|
aleurone
|
[Gk. aleuron, flour] A proteinaceous material, usually in the form of small granules, occurring in the outermost cell layer of the endosperm of wheat and other grains
|
|
|
climacteric
|
The large increase in cellular respiration evidenced by an increased uptake of oxygen and production of carbon dioxide during the ripening of many fruits, such as tomatoes, bananas, and peaches
|
|
|
apical dominance
|
The influence exerted by a terminal bud in suppressing the growth of lateral, or axillary, buds
|
|
|
indole-3-acetic acid (IAA)
|
A naturally occurring auxin; a plant hormone
|
|
|
ethylene
|
A simple hydrocarbon, H2C==CH2; a plant hormone involved in the ripening of fruit
|
|
|
gibberellins
|
[from Gibberella, a genus of fungi] A class of plant hormones, the best known effect of which is to increase the elongation of plant stems,
|
|
|
hormone
|
[Gk. horman, to stir up] An organic substance produced, usually in minute amounts, in one part of an organism and transported to another part of that organism where it has a specific effect; hormones function as highly specific chemical signals between cells,
|
|
|
florigen
|
[L. flor-, flower, + Gk. -genes, producer] The plant hormone that promotes flowering,
|
|
|
kinetin
|
[Gk. kinetikos, causing motion] A purine that probably does not occur in nature but that acts as a cytokinin in plants,
|
|
|
zeatin
|
A plant hormone; a natural cytokinin isolated from maize,
|
|
|
second messenger
|
A small molecule formed in or released into the cytosol in response to an external signal; it relays the signal to the interior of the cell; examples are calcium ions and cyclic AMP,
|
|
|
nonclimacteric fruits
|
Fruits such as citrus fruits, grapes, and strawberries that do not exhibit the large increase in cellular respiration during ripening that is seen in climacteric fruits,
|
