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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 the Turbidity Measurement? Presence of sufficient number of microbes makes the liquid medium turbid. Turbidity also increases with the multiplication of microbes. Estim
Immobilisation of cells Immobilisation of cells enables Re-use of biomass by rotation of cells Separation of cells from the medium and Leaching of metab
Define Food Components Other Than Essential Nutrients? In the previous units so far, we have read about the six major nutrients, which are essential for us. Though these vary i
The cell membrane is a slim semi-permeable membrane which surroundings the cytoplasm of a cell. Membrane function is to defend the integrity of the interior of the cell by allowing
Glanders The disease, also known as equine nasal phithisis, farcy or malleus, is highly infectious anthropozoonosis and is caused by Burkholderia (earlier Pseudomonas) mallei.
show me the schamatic diagram of chrysomoeba?
Induction in Metamorphosis Some of the morphogenetic changes throughout metamorphosis are found fo be quite independent of hormone action. For instance, generally during meta
Habit and habitat
name five animals in it''s trinomial nomenclature.
Explain the Functionality of Hot Air Oven? Hot air oven sterilizes the object by hot dry air. It kills the microorganisms by oxidizing cellular constituents. Dry Heat is less e
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