Problem 9, 135

Problem 9, 135 - excess As i , and explain why arsenate is...

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Problem 9 (Due May 5 th ) a) Arsenate (As i ) is a structural and chemical analog of inorganic phosphate, and is recognized by enzymes as a substrate in reactions ordinarily requiring P i . Arsenate derivatives are inherently less stable than their phosphate analogs-for example acyl arsenates spontaneously hydrolyze in aqueous solution. Write down the net reaction catalyzed by glyceraldehyde-3-phosphate dehydrogenase in the presence of
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Unformatted text preview: excess As i , and explain why arsenate is very toxic to most organisms. b) Glycerol (obtained from the breakdown of dietary triglycerides) is converted to DHAP by a two-step process, which then enters the glycolytic pathway. Write down the equation for the net conversion of glycerol to pyruvate based on your proposed sequence of reactions leading to DHAP and the subsequent reactions of glycolysis....
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This note was uploaded on 09/08/2010 for the course CHEM 135 at San Jose State.

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