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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.
Which of the following is a false statement regarding restriction enzymes? A. Restriction enzymes bind to a sequence specific element and disrupt the hydrogen bonds among
VERTEBRAL COLUMN - It is curved vertical about 70 cms. long. It consists of 33 vertebrae (after fusion 26). It shows 4 curvatures - (i) Cervical curvatures
are viruses cellular organisms
COPPER It is a trace element which is available in most of the fruits. Maximum in heart, brain, kidney & crustaceans. By its deficiency monkin's disease is caused. Cop
Q. Explain about Gastric ulcers? Gastric ulcers occur in the lesser curvature of the antrum of stomach. A gastric ulcer appears to be caused by reflux of bile and factors that
habitat, habit, cell wall chemistry, reason why cell wall like this of Archaebacteria , eubacteria,fungi,algae,bryophytes ,pteridophyes, gymnosperms , angiosperms..
Left internal mammary artery (LIMA): It is most often used for bypassing left anterior descending (LAD) coronary artery and its diagonal branch. The right internal mammary
The adaptive mechanisms may be short term ones which come into play within minutes or hours of the onset of myocardial dysfunction. These are: Frank-Starling Mechanism In
Define Some Example of Acidic and Basic Buffer? Frequently used example of acidic and basic buffer includes: - Acidic buffer: a mixture of CH 3 COOH (acetic acid) + CH 3 C
Explain in brief Chitinous? A structure which is composed of chitin, a complex carbohydrate composed of linearly arranged Nacetyl-glucosamine units. Chitin is a characteristic
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