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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.
How membrane maintained impermeability to potassium At 1 AM, an impermeable membrane divides a 1 liter solution of 1M NaCl in the left compartment from a 1 liter solution havin
Q. Explain Clinical Manifestations of cardiomyopathy? 1) Asymptomatic, when the diagnosis is made by 2D Echocardiography. 2) Enlargement of LV. Apex is shifted down and out.
Q. What is Atrial Extrasystoles? Atrial premature beats often occur at lower workloads and have little significance. As exercise increases, they usually subside and may then re
Guar Gum Guar Gum is derived from seed of legume Cyamopsis tetragonalobus resembling soyabean plant. Guar gum is composed of Galactomannan Galactose: mannose in the ratio 1:2.
Define hypertension, discuss its causes and explain its effects on the body. What role, if any, does medical imaging play in hypertensive patients? Explain and give examples.
Whenever a pair of alleles has different alleles is there dominance between them? Not in all cases of a gene includes two different alleles is the dominance complete. There are
Particulate Theory (i) Maupertuis (1689-1759) proposed that the body of each parent give rise to minute particles. (ii) In sexual reproduction, these particl
External budgets - Nutrient Budgets In contrast the external budgets pertain to the input and output of the entire ecosystem in relation to other ecosystems. For instance volc
Beginning with the entry of fatty acid into target cells, describe in detail how inactivation of carnitine can lead to a high level of fatty acids in the blood.
How are the epithelial tissues classified? The epithelial tissues are classified according to the shape of the cells that form it (epithelial cells may be cuboidal, columnar, o
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