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Phosphate: Quiz

  
  
  

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Question 1: The addition and removal of phosphate from proteins in all cells is a pivotal strategy in the regulation of ________ processes.
3-hydroxy-3-methylglutaryl-CoA lyaseLipid metabolismMetabolismAmino acid

Question 2: Inorganic phosphates are ________ to obtain phosphorus for use in agriculture and industry.
Mining engineeringMiningArchaeologyMetallurgy

Question 3: The largest phosphorite or rock phosphate deposits in North America lie in the ________ region of central Florida, United States, the Soda Springs region of Idaho, and the coast of North Carolina.
Bone ValleyBartow, FloridaBoca Grande, FloridaPolk County, Florida

Question 4: Phosphate is also an ________ compound with the formula OP(OR)3.
Organocopper compoundOrganophosphorusOrganoboron chemistryOrganoselenium chemistry

Question 5: The hard dense enamel of mammalian teeth consists of fluoroapatite, an hydroxy calcium phosphate where some of the hydroxyl groups have been replaced by ________ ions.
FluorideFluorineFluoride poisoningSodium fluoride

Question 6: Phosphates are the naturally occurring form of the element ________, found in many phosphate minerals.
NitrogenOxygenArsenicPhosphorus

Question 7: A phosphate, an inorganic chemical, is a salt of ________.
Phosphoric acidOxygenCitric acidSulfuric acid

Question 8: Organic phosphates are important in ________ and biogeochemistry or ecology.
BiochemistryAmino acidMetabolismProtein

Question 9: It consists of one central ________ atom surrounded by four oxygen atoms in a tetrahedral arrangement.
SulfurArsenicPhosphorusNitrogen

Question 10: The phosphate ion carries a negative three formal charge and is the conjugate base of the hydrogen phosphate ion, HPO2−4, which is the conjugate base of H2PO4, the dihydrogen phosphate ion, which in turn is the conjugate base of H3PO4, ________.
Sulfuric acidCitric acidOxygenPhosphoric acid
















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