Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain Absorption and Metabolism of Minerals?
All minerals in the diet are not equally absorbed. Also different compounds and complexes of same mineral are absorbed with different degree of efficiency. The fraction of the dietary intake of minerals absorbed and utilized for specific functions is defined as the bioavailability of the minerals. In addition to the chemical form in which minerals are present in the diet, factors such as age, sex, general health, and other constituents of the diet affect bioavailability of minerals. Upon absorption across the intestinal mucosa, minerals enter their metabolic pool. They are transported in the blood by specific transport protein(s) to their storage site or to the active physiologic/biochemical site. The physiologic effects of minerals depend on the level of intake.
There is a range of intake, known as safe and adequate range which provides optimal function. If the intake is progressively below this range there is a gradual decrease in the respective function of minerals until overt signs of deficiency appear. On the other hand when the intake exceeds the upper limit of safety (i.e. upper tolerable limit) signs of toxicity begin to appear. In fact, all the essential minerals are toxic if consumed in excess; however the concentration at which toxicity occurs varies widely. It must be emphasized here that as long as a mixed diet is the only source of minerals, toxicity is most unlikely to occur. In our subsequent sections we will learn in detail about the metabolism, functions, requirements, food sources etc of calcium, phosphorus, magnesium, iron, sodium, potassium and chloride. Let us begin with one of the most crucial element for maintaining bones and our skeletal system i.e., calcium and learn why is this mineral so important for us?
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Q. Can two normal individuals of the same species with sexual reproduction have identical karyotypes and identical genomes? And how is the human karyotype usually represented?
Basic characters of vertebrate classes
Transcription continues until a termination series is reached. The most common termination signal is a GC-rich region which is a palindrome, followed by an AT-rich sequen
An increase in the calcium conductance of all sarcoplasmic reticulum membranes of a skeletal muscle with no external forces on it leads to A. an increase in the amount of calci
Q.How is it produced and what is the function of cholecystokin in the digestive process? The fat level of the chyme detected in the duodenum stimulates the secretion of cholecy
How is the genetic determination of sex established in humans? In the diploid genome of human beings there are 46 chromosomes, 44 of them are autosomes and two are sex chromoso
EGESTION To give out undigested food from alimentary canal. Faeces can remain in colon for 36 hrs. then moving into rectum by gastro-colic reflex. Faeces consists of 3
What is Machined implant Machined implant has irregular surface roughness from approximately 10μm grooves and ridges in the machining direction. The roughness of implants can
Morphological Nature of Endosperm The morphological nature of endosperm in angiosperms has been a subject of much discussion in evolution. The endosperm in gymnosperms is a g
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd