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

Aerobic respiration, Ask question end product of aerobic repiration ar...

Ask question end product of aerobic repiration are

Family is the basic unit of society - child care, Family  is the Basic Uni...

Family  is the Basic Unit of Society   Each child within a family needs love and security to develop feelings of  trust and self esteem. Each child is a unique individual who h

Define functional role of sugars in food, Define Functional Role of Sugars ...

Define Functional Role of Sugars in Food? From the consumer's point of view, sugars are basically related with sweetness. Sweetness is essentially a physiological sensation. Th

Xerophytes, Xerophytes Xerophytes are sometimes loosely defineri as 'pl...

Xerophytes Xerophytes are sometimes loosely defineri as 'plants of dry habitats'. But others have defined xerophytes as 'plants which grow on the substratum that usually beco

Ways in which genetic recombination occurs during meiosis, Define two ways ...

Define two ways in which genetic recombination occurs during meiosis. Genetic recombination happens during crossing- over and independent assortment.

Find aquaporin channels in the membranes, The secretary coil fills the lume...

The secretary coil fills the lumen with a NaCl solution that is isotonic with the blood plasma. As this solution moves upward through the reabsorptive duct, NaCl is reabsorbed into

Glycogen synthesis and degradation in liver, Glycogen synthesis and degrada...

Glycogen synthesis and degradation in the liver and muscle is very similar. Which of the following enzymes is not used in both muscle and liver for these metabolic pathways? -ph

Medical management of chronic renal failure, Medical Management   In ch...

Medical Management   In chronic  renal failure  there  is irreversible renal failure. The goals of medical management are:   To promote maximal  renal  function  To ma

Explain about the zygomycota - fungi, Explain about the Zygomycota - Fungi?...

Explain about the Zygomycota - Fungi? Fungi belonging to zygomycota are called zygomycetes. Hyphae in this sub-class are coenocytic. Asexual spores develop in sporangia at the

What are the valves of the venous system, What are the valves of the venous...

What are the valves of the venous system? What is their function? The valves of the venous system are structures within the veins that permit blood to flow only in the normal w

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