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Arsenate: Quiz

  

Question 1: The arsenate ________ is AsO43−.
Lithium-ion batteryIonElectrolyteHalf cell

Question 2: The ________ involved are known as arsenate reductases.
Cofactor (biochemistry)EnzymeEnzyme inhibitorProtein

Question 3: Arsenate can replace inorganic phosphate in the step of ________ that produces 1,3-bisphosphoglycerate, yielding 1-arseno-3-phosphoglycerate instead.
GlycolysisCarbohydrate metabolismGluconeogenesisMetabolism

Question 4: In 2008, bacteria were discovered that employ a version of ________ with arsenites as electron donors, producing arsenates (just like ordinary photosynthesis uses water as electron donor, producing molecular oxygen).
Cell wallPlantPhotosynthesisAlgae

Question 5: In ________ conditions it exists as arsenic acid, H3AsO4;
Acid–base reactionAcidAcid dissociation constantOxygen

Question 6: Some species of ________ obtain their energy by oxidizing various fuels while reducing arsenates to form arsenites.
BacteriaCorynebacteriumGram-negative bacteriaGram-positive bacteria

Question 7: Arsenate resembles phosphate in many respects, since ________ and phosphorus occur in the same group (column) of the periodic table.
ArsenicChromiumCopperZinc
















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