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Explain the Bioavailability of nutrients?
The amount of many nutrients needed in the diet depends on the absorption or bioavailability of the nutrients. Bioavailability is defined as 'the percent of the dietary nutrient absorbed and utilized for a specific function by the body'. The percent absorption varies widely for different nutrients depending on the quantities ingested and the presence of other constituents of the diet. Examples are: iodine absorption is nearly loo%, calcium absorption in a normal adult is about 40% to 60% while that of iron varies from 1% to 15% , depending on the type of iron and other constituents of the diet. The concept of bioavailability is best illustrated by iron, Iron is present as inorganic iron in vegetarian foods and as organic iron in meat and flesh foods, The inorganic form of the iron, as you may already be aware, is known as 'non-haem iron' while the organic form is known as haem iron. The 'non-haem iron'' absorption is affected by several constituents of the diet while haem iron absorption is relatively independent of these constituents.
What are the functions of insulin and glucagon for the blood glucose control? Glucagon enhances glycemia and insulin reduces it. They are antagonistic pancreatic hormones. Gluc
Aerotolerant anaerobes are incapable of aerobic respiration, but can nevertheless grow in the presence of air. Many lactic acid bacteria fall into this category. They can only gene
Synthesis of fatty acids requires the movement of citrate out of the mitochondria. This occurs under conditions of high levels of acetyl CoA which is needed to stimulate the activi
Define Briefly about the Copper? As early as the times of Hippocrates, copper compounds were used to treat various diseases. However, in the 20" century, it was noticed that an
J-shape d - It shows 2 phases - (i) Lay phase (ii) Exponential phase
Q. Carbohydrate requirement during congestive cardiac failure? While the quantity of carbohydrate remains almost the same as per the RDI i. e, 60% of the total energy, the qual
muscles amd its types
Puerperal Psychosis: Child birth can precipitate schizophrenia, depression and mania. Management: it depends on the nature of the symptoms. Danger to self and othcrs (inc
Procedure for Morphological Characteristics of Yeast Cells? Now carry out the exercise following the steps enumerated herewith: (1) Label the clean, non-greasy slide. Put fe
Q. Symptoms of gastro oesophageal reflux disease? Most commonly, people with GERD complain of heartburn, a painful or uncomfortable feeling in the chest, which may radiate to t
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