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Define Absorption, Storage and Elimination of ascorbic acid?
Ascorbic acid is rapidly absorbed from the intestines primarily by active transport. Simple diffusion or carrier-mediated transport may also contribute to a small extent of uptake of the vitamin from the mouth and stomach. Prior to absorption, ascorbate may be oxidized to form dehydroascorbate which is absorbed by passive diffusion or by use of glucose transporters. It passes through the portal vein to the general circulation and to all tissues. Each organ or tissue has an optimal saturation level of ascorbic acid. It is not stored to any appreciable extent in the body. The degree of absorption decreases with increased vitamin intake and varies from 16% to 98%, the average overall absorption being about 80% to 95%. Unabsorbed vitamin C may be metabolized by the intestinal flora. Pectin and zinc are a few substances that impair its absorption. Excess is excreted in urine.
Explain Failing implant and biologic failure Failing implant : An implant that is progressively losing bone but is clinically stable (firm) can be defined as failing. Bio
what is a limited resourse needed by all cells?
Another important genus of mycotoxin producers is Fusarium, many species of which produce members of the trichothecene family of mold metabolites like deoxynivalenol, neosolaniol a
What mode of nutrition did lizard exihbite
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Assume that you have 1 ml of a solution of amylase (an enzyme) at a concentration of 15 mg protein/ml. Calculate the volume of diluting buffer that you would have to add to 1.0 ml
State the types of brain trauma? There are two main types of brain trauma a) open head injury and b) closed head injury
Why in the preparation of a karyotype analysis is the use of a substance like colchicine interesting? Colchicine is a substance that disallows the formation of microtubules and
Energy and protein deficiencies Deficiencies of protein and energy are the most common nutrient deficiencies, which adversely affect production and performance of farm animals
Define Effect of Nutrition on the Immune System? Nutrition has a strong influence on the immune system of the elderly. Ageing induces dysregulation of the immune system, mainly
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