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Enzyme activity |
Also found in: Dictionary/thesaurus, Legal, Financial, Encyclopedia, Wikipedia, Hutchinson | 0.01 sec. |
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activity /ac·tiv·i·ty/ (ak-tiv´ĭ-te) 1. the quality or process of exerting energy or of accomplishing an effect. 2. a thermodynamic quantity that represents the effective concentration of a solute in a nonideal solution. Symbol . 4. the presence of recordable electrical energy in a muscle or nerve (electrical a.). 5. optical a. end-plate activity spontaneous activity recorded close to motor end plates in normal muscle. enzyme activity the catalytic effect exerted by an enzyme, expressed as units per milligram of enzyme (specific a.) or as molecules of substrate transformed per minute per molecule of enzyme (molecular a.) . intrinsic sympathomimetic activity (ISA) the ability of a β-blocker to stimulate β-adrenergic receptors weakly during β-blockade. optical activity the ability of a chemical compound to rotate the plane of polarization of plane-polarized light. Enzyme activity A measure of the ability of an enzyme to catalyze a specific reaction. Mentioned in: Glucose-6-Phosphate Dehydrogenase Deficiency activity the quality or process of releasing energy or of accomplishing an effect. displacement activity an instinctive behavior pattern, exhibited out of context and believed to be a means of relieving tension in the animal. Usually performed when the animal is in a state of high arousal or when it is frustrated in the performance of some instinctive activity. Seen as sexual mounting, digging, tail chasing, or excessive grooming in cats. economic activity a method of producing a specific product, e.g. fine wool, white veal. enzyme activity the catalytic effect exerted by an enzyme, expressed as units per milligram of enzyme (specific activity) or molecules of substrate transformed per minute per molecule of enzyme (molecular activity). activity gross income the total value of production, rather than the income, for a particular activity. activity gross margin the gross income of an activity less its variable costs. intermediate activity production of a commodity which is not sold but is used as an input to some other enterprise, e.g. crop used on the farm as stock feed. optical activity the ability of a chemical compound to rotate the plane of polarization of plane-polarized light. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The new finding "just goes to show you how marvelously clever nature is at blocking enzyme activity," says Brown. At 10 days of age, there were no significant differences in weight gain, intestinal length or growth, nutrient uptake, or digestive enzyme activity among the piglets. In addition, the test sample had significantly more enzyme activity (approximately 90% more) than the commercial sample. |
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