Explain mechanism for reduce the absorption of nutrients, Biology

Assignment Help:

Explain Mechanism for reduce the absorption of nutrients?

The absorption of nutrients is also reduced by mechanisms other than increasing the viscosity of gastrointestinal content. These mechanisms are:

  • Soluble fibres (pectin, guar gum, oat bran), as well as, insoluble fibrelignin, may affect lipid absorption by their ability to adsorb fatty acids and cholesterol, thereby inhibiting their incorporation in miscelle. Further adsorption of bile acids to these fibres reduces the availability of bile acids for micelle formation.
  • In case of unrefined whole plant material, the nutrients are sequestered within the cellular matrix and hence unavailable for absorption. Grinding of food material and thorough chewing can influence absorption.
  • The altered mineral availability associated with diets high in fibre appear to be due to binding of metal ions. Fibres which possess uronic acid (pectin, hemicelluloses gum) can form cationic bridges with minerals. Lignin, with both carboxyl and hydroxyl groups, can absorb minerals. Certain constituents of plants e.g. phytates, silicates and oxalates also chelate divalent cations. However, the overall effect that a fibre will have on mineral balance will depend on the composition of diet and degree of fermentability of fibre. Rapidly fermentable fibres release the bound minerals as fermentation occurs and these minerals may possibly be absorbed in the colon.

Related Discussions:- Explain mechanism for reduce the absorption of nutrients

What is implant therapy, What is Implant therapy Successful implant th...

What is Implant therapy Successful implant therapy requires systematic thorough and meticulous planning to determine the ultimate prognosis and end result that will satisfy th

Explain adverse effects of efavirenz, Adverse effects of Efavirenz The ...

Adverse effects of Efavirenz The most common adverse effects have been rash, dizziness, headache, insomnia and inability to concentrate. Vivid dreams, nightmares and hallucinat

Fructose-1, Fructose-1,6-bisphosphate  and Fructose-6-phosphate : The  conv...

Fructose-1,6-bisphosphate  and Fructose-6-phosphate : The  conversion of  fructose-1,6- bisphosphate  to fructose-6-phosphate is  catalysed by fluctose-1,6-bisphosphatase  which  i

How many asymmetric the amino acid serine have, How many asymmetric carbons...

How many asymmetric carbons does the amino acid serine have? Please explain with a strucutral diagram if possible.

Explain the meaning of protein deficiency, Explain the Protein Deficiency? ...

Explain the Protein Deficiency? One of the most common nutritional disorders in the world today is the deficiency of protein. Both adults and children are affected, as the popu

What are the major morphological features of arthropods, Q What are the maj...

Q What are the major morphological features of arthropods? Arthropods present three distinguishing features: they are metameric beings (segmented body), they present articulate

Determine the cardio-vascular system, Determine the Cardio-vascular System ...

Determine the Cardio-vascular System Cardio-vascular system consists of a heart and blood vessels. The function of cardio- vascular system is to maintain blood supply to all t

Zoology, differences regarding Tiger Planaria and the Iridescent Phyllodoce...

differences regarding Tiger Planaria and the Iridescent Phyllodoce

Disorders related to nutrition and digestive system, DISORDE R RELATED TO ...

DISORDE R RELATED TO NUTRITION AND DIGESTIVE SYSTEM Malnutrition Malnutrition is improper intake of food. Malnutrion covers both undernutrition and overnutrition. Und

How old is the earth, How old is the earth? It is believed that the ear...

How old is the earth? It is believed that the earth is about 4.5 billion years old.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd