definition for thigmotropism
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- thig·mot·ro·pism. n. The turning or bending response of an organism or part of an organism upon direct contact with a solid surface or object. Also called stereotropism. thig′mo·trop′ic (thĭg′mə-trŏp′ĭk, -trō′pĭk) adj.
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Country vs country: Russia and United States compared: People stats North Korea Life expectancy at birth. Definition: This entry contains the average number of years to be lived by a group of people born in the same year, if mortality at each age remains constant in the future. The entry includes total population as well as the male and female components.
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Tropism Forms of tropism include phototropism (response to light), geotropism (response to gravity), chemotropism (response to particular substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), traumatotropism (response to wound lesion), and galvanotropism, or electrotropism (response to electric current).
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chemolithoautotroph chem·o·lith·o·au·to·troph. noun. A chemosynthetic organism that obtains energy from the oxidation of inorganic compounds and uses carbon dioxide as its sole source of carbon for growth. Also called chemoautotroph, chemolithotroph.
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- thixotropy thix·ot·ro·py (thĭk-sŏt'rə-pē) n. The property exhibited by certain gels of becoming fluid when stirred or shaken and returning to the semisolid state upon standing.
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- Thigmotropism is a response that is often seen in plants in response to touch or contact. This article addresses thigmotropism and its uses in plants.
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Tropism Phycomyces, a fungus, exhibiting phototropism. A tropism (from Greek τρόπος, tropos, a turning) is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus. In tropisms, this response is dependent on the direction of the stimulus (as opposed to nastic movements which are non-directional responses).
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- Summary. Thigmotropism is a movement that occurs with organisms, such as plants, are stimulated by touch. In climbing plants, this helps to direct the pattern of growth around an object that is in contact with the plant. This involves the use of hormones, such as auxin and ethylene, to facilitate the growth process.
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thiopental /thio·pen·tal/ (thi″o-pen´tal) an ultrashort-acting barbiturate; the sodium salt is used intravenously to induce general anesthesia, as an adjunct to general or local anesthesia, and as an anticonvulsant.
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- Hemihypertrophy is a genetic disorder characterized by overgrowth of one side of his or her body in comparison with the other. The overgrowth may affect only one part of the body, such as the legs. However, it may involve several different areas of the body including the arms, face, and tongue.
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- Definition of KINEMATICS. : a branch of dynamics that deals with aspects of motion apart from considerations of mass and force.— ki·ne·mat·ic \-tik\ or ki·ne·mat·i·cal \-ti-kəl\ adjective.efinition of KINEMATICS. : a branch of dynamics that deals with aspects of motion apart from considerations of mass and force. — ki·ne·mat·ic \-tik\ or ki·ne·mat·i·cal \-ti-kəl\ adjective.
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Tropisms: Phototropic, Geotropic and Thigmotropic Plant Growth Tropos means 'to turn'. Therefore, a tropism is a turn towards or away from a stimulus. When the movement is towards the stimulus, it is called positive tropism. Likewise, when the movement is away from the stimulus, it is called negative tropism.While there are several forms of tropism, we'll just focus on three key types: phototropism, geotropism and thigmatropism.ropos means 'to turn'. Therefore, a tropism is a turn towards or away from a stimulus. When the movement is towards the stimulus, it is called positive tropism. Likewise, when the movement is away from the stimulus, it is called negative tropism.
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Tropisms and Nastic Movements Tropisms and Nastic Movements. Tropisms are growth responses of plants that result in curvatures of plant organs toward or away from certain stimuli. Tropisms can be positive, in which case the plant will bend toward a stimulus, or negative, in which case the plant will bend away from a stimulus. Important tropisms in plants include phototropism, gravitropism, and thigmotropism.
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water rheotaxis. the tendency of some plants to respond to a current of water by growing with it (positive rheotaxis) or against it (negative rheotaxis). rheotropism. the tendency of certain living things to move in response to the mechanical stimulus of a current of water. sympesiometer, sympiezometer. an instrument for measuring the pressure exerted by currents of water. See also instruments.
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Bradyphrenia Bradyphrenia is defined as a pathological slowing of mental processes. First reported in parkinsonism, it is a sensitive but nonspecific indicator of cerebral pathology, white matter integrity, and frontosubcortical circuit disruption. Despite challenges in definition and quantification, reports dissociate bradyphrenia from aging, depression, and bradykinesia.
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tautomerism medical Definition of tautomerism : isomerism in which the isomers change into one another with great ease so that they ordinarily exist together in equilibrium Learn More about tautomerism
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What is gravitropism? Geotropism. Gravitropism (or geotropism) is a turning or growth movement by a plant or fungus in response to gravity. Charles Darwin was one of the first Europeans to document that roots show positive gravitropism and stems show negative...
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hydrotropism (hī-drŏt'rə-pĭz'əm) The growth or movement of a fixed organism, especially a plant, or a part of an organism toward or away from water. Roots often display hydrotropism in growing towards a water source. hydrotropic adjective (hī'drə-trō'pĭk, hī'drə-trŏp'ĭk)
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Definitions &Translations Definitions for tetraparesis. Here are all the possible meanings and translations of the word tetraparesis. Wiktionary(0.00 / 0 votes)Rate this definition: tetraparesis(Noun) weakness of the muscles of all four limbs.
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Thigmotropism in Plants: Definition & Overview Thigmotropism is a movement or response that is generated when an organism is stimulated by touch. This type of stimulus is known as a contact stimulus, and is important for the growth and development of many organisms.
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Difference between nastic movements and tropism movements? A tropism (from Greek τροπή, trope, a turning) is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response … to an environmental stimulus. Growth towards the stimulus is called a positive tropism. Growth away … from the stimulus is called a negative tropism.   The response to light is called phototropism. Shoots are positively phototropic, roots are negatively phototropic.   The response to gravity is called gravitropism (or sometimes geotropism).
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Disney gives first peek at Frozen Ever After log ride coming to Walt Disney World's Epcot center next year The kingdom of Ardenelle from Disney's Frozen will finally come to life in a new Epcot Center ride for the thousands of children who can probably still sing every word to the film's songs by heart. Disney has given the first peek at 'Frozen Ever After', opening next year at Walt Disney World in Orlando, Florida.
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Definitions &Translations The movement of a plant (or other organism) either towards or away from water. Hydrotropism(noun) a tendency towards moisture. Hydrotropism. Hydrotropism is a plant's growth response in which the direction of growth is determined by a stimulus or gradient in water concentration. A common example is a plant root growing in humid air bending toward a higher relative humidity level.
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- Later on bending or coiling may occur in lower parts of the tendril as well. Thigmotropism is a movement in which a plant moves or grows in response to touch or contact stimuli. The prefix thigmo-comes from the Greek for touch (θιγμός).
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Hydrotropism In tropism, the response of the organism is often by its growth rather than by its movement. It may grow either towards or away from the stimulus. Hydrotropism is a form of tropism characterized by the growth or movement response of a cell or an organism to moisture or water. The response may be positive or negative.
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- Medical Definition of inotropic. : influencing muscular contractility : increasing or decreasing the force of muscular contractions digitalis is a positive inotropic agent.