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

Causes of non-ketotic hyperosmolar diabetic coma, Q. Causes of Non-Ketotic ...

Q. Causes of Non-Ketotic Hyperosmolar Diabetic Coma? The causes of NKHDC are given below: 1) Infections 2) Trauma 3) Burns 4) Myocardial Infarctions (heart attack)

Does an increase of h+ cause the hemaglobin, Does an increase of H+ cause t...

Does an increase of H+ cause the hemaglobin oxygen binding curve to shift to the left or right? Explain.

The codon gca specifies which amino acid, Use the genetic code table Assign...

Use the genetic code table Assignment34 The codon GCA specifies which amino acid?

Gas exchange, Gas Exchange Gill surface area must be large enough to p...

Gas Exchange Gill surface area must be large enough to provide adequate exchange of gases. Therefore, highly active fish have largest relative gill area. Figure compares highl

Development of heart in amphibians, Development of Heart in Amphibians ...

Development of Heart in Amphibians The heart and the surrounding pericardial cavity build up from lateral mesoderm. After gastrulation, the mesodermal mantles carry on to gro

Strawberry slain - common disorders of skin, Strawberry Slain: It  sig...

Strawberry Slain: It  signfies the dilatation  of deeper vessels  to form  cavernous spaces like those seen  in  the erectile tissue of the penis. The  lesion  is well-defined

Rehabilitation phase for nutritional treatment -neuro trauma, Rehabilitatio...

Rehabilitation Phase for nutritional treatment - Neuro Trauma? Once the patient stabilizes and starts recovering, be sides nutritional replacement, there is a need to assess fu

Coronal disassembly with marginal defect, Coronal Disassembly - If the ...

Coronal Disassembly - If the existing restoration with marginal defect: - The crown was sectioned through the bucco-occlusaly , Christensen crown remover elevate and remove

Spoilage of pasteurized milk, Q. Explain Spoilage of pasteurized milk? ...

Q. Explain Spoilage of pasteurized milk? You would recall that pasteurization is one of the techniques to control and destroy the pathogenic, as well as, .spoilage bacteria i

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