Define absorption, transport and excretion of phosphorus, Biology

Assignment Help:

Define Absorption, transport and Excretion of phosphorus?

As you have seen that food contains both organic and inorganic phosphorus, but most of it is absorbed in its inorganic form. Therefore, organically bound phosphorous is hydrolyzed in the lumen by intestinal phosphatases. However, organic phosphate of phytic acid may not be available. Phosphorus absorption occurs throughout the small intestine, although duodenum and jejunum are important sites. Phosphorus absorption is efficient-60-70%.

Ingestion of antacids containing magnesium or aluminium hydroxide can interfere with phosphorus absorption. It is important to note that unlike calcium, absorption efficiency of phosphorus does not increase on low intake nor any adaptive mechanism is available for the same. Most phosphorus is absorbed by passive concentration dependent process. However, a portion of phosphorus is absorbed by active transport, facilitated by calcitriol. Unabsorbed phosphorus is excreted in faeces.


Related Discussions:- Define absorption, transport and excretion of phosphorus

Tools of lower paieolithic age, Tools of lower paieolithic age Pleistoc...

Tools of lower paieolithic age Pleistocene times there were huge herds of very large mammals. Bones of such large mammals were found associated with the human fossil finds and

When staphylococcal occur, Staphylococci exist in air, dust, sewage, water,...

Staphylococci exist in air, dust, sewage, water, milk and food or on food equipment, environmental surfaces, humans and animals. Humans and animals are the primary reservoirs. Stap

Hemiplegic migraine and ophthalmologic migraine, Hemiplegic migraine and op...

Hemiplegic migraine and ophthalmologic migraine These are relatively rare and include loss of movement of the limbs and eyes, respectively.

Primary prevention - levels of prevention, Primary Prevention: Primary...

Primary Prevention: Primary prevention should have the following goals:  i)  Ascertaining at the risk population and  the high risk situations where stressful life events a

Defina about the lipid metabolism, Defina about the Lipid Metabolism? A...

Defina about the Lipid Metabolism? Animal studies consistently show a hypotriglyceridenlic effect although equivocal results have been seen with healthy humans. Hypotriglycerid

Determine the change in the amount of intracellular chloride, Determine the...

Determine the change in the amount of intracellular chloride Complete motor neuron is removed from a frog and placed in a large volume of normal physiological saline.  The neur

Measuring biodiversity, Diversity is defined as the no of species present i...

Diversity is defined as the no of species present in a community termed as "species richness". We can represent species biodiversity at different geographical scales as alpha, beta

Fixation and movement to echinoderms, Q What is the system that permits fix...

Q What is the system that permits fixation and movement to echinoderms? The system that permits fixation and movement to substrates in echinoderms is called the ambulacral syst

Explain about the pickling - methods of food processing, Explain about the ...

Explain about the Pickling - methods of food processing? Pickling was widely used to preserve meats, fruits and vegetables in the past, but today it is used almost exclusively

Microbiology, advantages of spread plate method over pour plate method

advantages of spread plate method over pour plate method

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