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Explain Transport and Utilization of Vitamin A?
The efficacy of the intestines to facilitate absorption and utilization of retinoid s and carotenoids depends upon the cellular uptake of these compounds into the intestinal mucosal cell, bioavailability or passage of the molecules beyond the intestinal mucosa into the body with the potential for storage or use in tissues and bioconversion i.e., production of active retinoid from provitmin A carotenoids. Inside the intestinal cells, ß-carotene is cleaved by a cytosolic enzyme 15-15' oxygenase to form retinaldehyde, which is then reduced by the microtonal enzyme retinal reductase to retinal. Thus, the ultimate product formed in the intestines is retinol, which is then re-esterifies with long chain fatty acids by intra cellular retinol-binding proteins (CRBP) and packed into chylomicron containing cholesterol esters, phospholipids, triacylglycerol etc. What happens to this chylomicrons.
CHOLINE Found in egg liver & kidney. Synthesized in body with acetyle coA. It forms acetylcholine. Deficiency causes damage to kidney.
Define Cyanmethaemoglobin Standard - Haemoglobin Content in Blood? Certified standard haemoglobin solution may be obtained from certified or reputed laboratory supply firms. St
Determine the Factors that Affecting Food Choice? As a dietician, it is necessary to understand how our food choices are affected. Every day we make food choices which influenc
Non Symbiotic Nitrogen Fixers - Nutrient Cycles There are certain groups of free living bacteria both aerobic and anaerobic and blue green algae that fix nitrogen. Aerobic nit
1) The presence of epicardial coronary artery stenosis caused by artherosclerotic plaques is by far the most frequent angiographic finding in any cardiac ischaemic syndrome. 2)
Define Foam Spray Drying Method? This is an extension of spray drying and involves the use of gases dissolved under pressure prior to spraying. The main advantage is that the
What is the difference between heterozygosity and homozygosity? The Homozygosity occurs when an individual has two identical alleles of a gene, for instance, AA or aa. The Het
What is the valve that separates the stomach from the esophagus called? What is its function? The valve that separates the stomach from the esophagus is the cardia. It has the
Q. Dietary Fibre requirement during diabetes? Dietary fibre is that part of food which is not digested by the intestines. High fibre meals have shown to give the best glycemic
Q. What is Barr body Genes? Located inside nuclear envelope, it's a densely staining object which is an inactivated X chromosome in female mammalian cells. Most Barr body genes
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