Explain about the intestinal calcium absorption, Biology

Assignment Help:

Explain about the Intestinal calcium absorption?

Intestinal calcium absorption is mainly controlled by the serum concentration of 1, 25- (OH)2D as discussed above. The activity of the 1-α-hydroxylase, which catalyzes 1, 25-(OH)2D production from 25-hydroxyvitanlin D (25-OH-D) in the kidneys, is negatively related to plasma calcium and phosphate concentrations and positively related to plasma parathyroid hormone concentrations. Thus, the inverse relationship between calcium intake and fractional absorption described above is enhanced by the inverse relationship between dietary calcium and serum 1, 25-(OH)2D. We will learn about this aspect later in this section under the heading regulation of Ca concentration.


Related Discussions:- Explain about the intestinal calcium absorption

What is the name of the larva of corals and sea anemones, What is the name ...

What is the name of the larva of corals and sea anemones? What is the biological significance of that larval stage? Sexual reproduction in corals and sea anemones has a larval

Phylum coelenterata, what is the food getting habits of phylum coelenterata...

what is the food getting habits of phylum coelenterata?

What is the emperical evaluation, What is the Emperical evaluation Emp...

What is the Emperical evaluation Emperical evaluation based on: i) Time elapsed since stage one surgery - Considering the sigma cycle of bone formation in humans, a time pe

How to improve natural history with congenital heart disease, How to improv...

How to improve natural history of adults with congenital heart disease? Improving the natural history of adults with CHD: As mentioned above the populations of adults with CH

Posterior leaflet-technique of operation, Posterior Leaflet: In the poste...

Posterior Leaflet: In the posterior leaflet a quadrangular excision of the sector involved in the prolapse is done. This may be up to 15-20 per cent of the leaflet. The remaining

What is interspecific competition in ecology explain, What is Interspecific...

What is Interspecific Competition in ecology explain? Populations in nature usually share their surrounding environment in time and space with populations of other species. If

Explain huntington disease gene, Research methods used in studying a geneti...

Research methods used in studying a genetic disease change with technological advances. These changes can be seen in Reading 22.1: Discovering the Huntington Disease Gene, which de

Describe the typical composition of a virus, The human immune system has de...

The human immune system has developed diverse, coordinated methods of resisting and destroying viruses. a.  Describe the typical composition of a virus. Why are viruses not clas

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