"Phosphate replaced by arsenate in glycolosis"

[Science Dude]

Arsenic is structurally similar to a phosphate group therefore many enzymes that require phosphate will also utilize arsenate. Predict the net reaction catalyzed by PGAL dehydrogenase if phosphate is replaced by arsenate.

 

I dont know what i should write for this question however i did try:

 

Arsenate structure is similar to the structure of a phosphate group therefore in Glycolysis, Arsenate can easily replace the inorganic phosphate that produces 1, 3 bisphosphoglycerate (BPG) therefore yielding 1-arseno-3-phosphoglycerate instead. The BPG molecule is expected to produce an ATP molecule by phosphorylating ADP to ATP (giving away phosphate to ADP) but because BPG is converted to 1-arseno-3-phosphoglycerate, it donates arsenate to ADP to form ADP arsenate. Therefore Glycolysis does continue but the ATP molecule that is expected to be produced from BPG is lost.

 

Can someone help me with this question.