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Science Words
Test Feburary 12th 2013
| Question | Answer |
|---|---|
| vascular plants | largest groups in plant kingdom tht have tubelike structures tht provide circulate water and food throughout the plant |
| nonvascular plants | plants are much different and there are far less plants tht fit into groups. They dont have root systems |
| seed producing plants | plangts tht are split into 2 groups based on how there produced |
| spore producing | plants that are produced spores for reproduction instead of seeds |
| angisperm | flowering plants are known as this; most trees,shrubs,vines. etc |
| gymnosperms | a cone bearing plant tht are different bcause they never have flowers produce seeds in cones. |
| monocot | a seed with one food storage area |
| dicot | a seed with two food storage areas |
| photosynthesis | process when green plants and some other organisms use sunlight to syntesize foods from carbon dioxide and water |
| cotyledon | an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear from a germinating seed |
| xylem | the vascular tissue in plants tht conducts water and dissolved nutrients upward from the root and also helps to form th woody element |
| phloem | the vascular tissue in plants tht conducts sugars and other metabolic products downward from the leaves |
| fibrous roots | a fibrous root system is the oppisite of a taproot system- usually formed by thin, moderatly branching roots growing from the stem |
| taproots | a straight tapering root growing vertcally downward and forming the center which subsidary rootlets spring |
| stamen | the male fertillizing organ of a flower, typically consisting of a pollen-containing anther and a filament |
| pistil | the female organs of a flower, comprising the stigma, style, and ovary |
| ovary | the hollow base of a carpel of a flower, containing one or more ovules |
| stigma | |
| style | |
| seed | a flowering plants unit of reproduction capable of developing into another such plant |
| embryo | an unborn/unhatched offspring in the process of development |
| germination | process where by seeds or spores sprout and begin to grow |
| plant development | process by which structures originate and mature as a plant grows |
| fertilization | action or process of fertilizing a plant or fertilizer to soil |
| pollination | transfer of pollen from the anther to the stigma of a plant |
| seed production | |
| plant life cycle | gametophyte, plant sexuality, pollen, pollenation, seed, spore, sporophyte |
| sexual reproduction | plant reproduction is production of new individuals or offspring in plants, which can be accomplished by sexual or asexual means |
| asexual reproduction | reproduction without the fussion of gametes |
| chloroplasts | a plastid tht contains chlorophyll and in which photosynthesis takes place (in green plants) |
| chlorophyll | a green pigment present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy |
| stomata | minute pores in the epidermis of the leaf of the leaf or stem of a plant, forming a slit of varriable width tht allows movement of gases |
| respiration | action of breathing |
| transpiration | passage of gases through fine tubes because of differences in pressure or temperature |
| stimuli | a thing tht rouses activity or energy in someone or something; a spur or incentive |
| dormancy | one or more of the plants organs undergoes a period in which the growth processes are slowed down, or suspended, tht state is termed |
| tropism | turning of all or part of an organism in a paticular direction in response to an external stimulus |
| phototropism | orientation of a plant or other organisms in response to light, either toward the source of light or away |
| growitropism/ geotropism | a turning or growth movement by a plant or fungus in repsponse to gravity |
| hydrotropism | growth or turning of plant roots toward or away from moisture |
| thigmotropism | turning or bending of a plant or other organism in response to a touch stimulus |
Created by:
abby_pottorff_13
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