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How Age factors Affecting the calcium absorption?
Age is another factor which influences the absorption of calcium. Fractional absorption of calcium is highest in infancy i.e., 6O%, followed by the early pubertal period. One study found 28% calcium absorption in pre pubertal children that increased to 34% in early puberty returning to the adult value of 25% two years later. Absorption of calcium is also increased in pregnancy to levels higher than 25% reported for adults. Available data suggests that in post menopausal women, absorption declines by 0.21% every year. Thus, from 50 years to 70 years, absorption may decline by 4%. Ageing also reduces renal losses of calcium, due to reduced absorption and decrease in filtered calcium load.
What are periplastidial spaces?
A person notices a mild shock if the current along a path through the thumb and index finger exceeds 84 µA. Compare the maximum possible voltage without shock across the thumb and
At 1 AM, an impermeable membrane separates a 1 liter solution of 1M NaCl in the left compartment from a 1 liter solution containing both 1M NaCl and 1M KCl in the right compartment
Q Which are the extra abundant ribosomes in secretory cells - the free cytoplasmic ribosomes or those associated with the rough endoplasmic reticulum? Free cytoplasmic ribosome
Q. Atypical Distribution of Pleural Fluid? i) Lamellar effusion: These are shallow collections of fluid between the chest wall and the lung surface. ii) Subpulmonic
What process causes oxygen to pass from the alveoli into the lung capillaries? Diffusion is the process by which oxygen passes from the alveoli to the lung capillaries.
In his experiments, Mendel noted that when two traits are involved in a genetic cross, they are inherited independently of each other. The reason for this is that A. genes on the s
When the product of a metabolic pathway decreases the rate limiting earlier in the pathway it is called?
Limitations of Panoramic X-Ray There are certain limitations to panoramic Xrays that you have to be awareof: The amount of magnification Fine details of structures arou
what are the economic and ecological importance of molluscs
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