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Science Words

Test Feburary 12th 2013

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
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