A person takes a Ca-Mg-Zn pill daily. Zn can inhibit the absorption of Mg. An intake...

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Biology

A person takes a Ca-Mg-Zn pill daily. Zn can inhibit theabsorption of Mg. An intake of >142mg of Zn will prevent Mgabsorption. However, an intake of >500 mg of Ca can rescue Mgabsorption that is blocked by Zn. One dose of the supplementcontains 1.502 x 10²² atoms of Ca, 9.94 x10²¹ atoms of Mg, and 1.379 x 10²⁰ atoms ofZn. With this information, answer the following:
A) How many doses of the pill is necessary to reach the Znthreshold which blocks Mg absorption?
B) The calcium in this pill is in the form of calcium carbonate,and only 15% of the calcium present in the dose will actually getabsorbed. Taking this constraint into account, is the level of Casufficient enough to rescue the Mg absorption that is blocked bythe Zn? Input the amount of Ca²⁺ absorbed.
C) There are 5 L of blood in the human body. Bloodconcentrations of Ca between 0.0035 and 0.0040 mol/L indicatecritical hypercalcemia. At this dose (the dose it takes to block Mgabsorption), will the calcium kill the person taking the pill?Answer here with the molarity of Ca²⁺ resulting fromingesting the number of doses calculated in question A.

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4.1 Ratings (640 Votes)

A 1 dose of zinc 1379 x 1020 atoms 1379 x 10206023 x 1023 moles avogadro number 02289 x 103 moles x 653 gms atomic wt of zinc 01494 g 1494 mg Now the amount required for blocking Mg absorption is 142 mg of zinc So no of doses that would be required 1421494 95 doses 10 See Answer

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