Which of the reactions given in Problems 12.72 represent isomerizations where the reactants and products are structural isomers?
a. glucose to glucose-6-phosphate
b. glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate
c. dihydroxyacetone phosphate to glyceraldehyde-3-phosphate

Question

Which of the reactions given in Problems 12.72 represent isomerizations where the reactants and products are structural isomers?

a. glucose to glucose-6-phosphate

b. glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate

c. dihydroxyacetone phosphate to glyceraldehyde-3-phosphate

Accepted Answer

Welcome back, everyone. Which of the given terms best explains the conversion of dihydroxy acetone phosphate to glyceraldehyde with phosphate. And we're given four answer choices. A isomerization. B phosphorylation, C de hydrogenation and D dehydration. So let's look at this specific conversion. We are starting with dihydroxy acetone. Let's recall that acetone is going to have three carbons. Specifically, we want to add our ketone group and then we simply want to add one. Oh that's dihydroxy acid and phosphate, right. So essentially we are adding 10, there are two hydros bonded to carbon and now for the other carbon, we have replaced that second hydroxy group wet phosphate opo three with a two negative charge. And then there are two hydrogens. So that's the starting structure and essentially it is converted into glyceraldehyde three phosphate. So once again, we have three carbons. Since it's an aldehyde, we're going to add an aldehyde group co the next carbon is going to have hydrogen and hydroxy group and it says three phosphate. So now carbon number three is going to have phosphate opo 32 negative. And of course, we need to make sure that we satisfy the valency of four. So we add two hydrogens. If we look at the two structures, they have three carbons. What about hydrogens? 1234512345. So five hydrogens, what about the oxygens? One, two, we, we blessed, we gives us sex and for the second structure, 123, we plus we gives us six and there is one phosphorus atom, right? And both of them contain the net to negative charge. So they have the same molecular formula. But what we notice is that the first structure has carbonel at carbon. Number two, the second structure has carbel at carbon number one. So these two structures have different connectivity of atoms, right. And therefore we can state that they are constitutional isomers and the process of conversion is isomerization. So the correct answer to this problem would be option a isomerization. Now, if we consider option B phosphorylation, it is essentially the addition of the phosphate group to the structure and we haven't added any additional phosphate groups, right. So essentially we can say that B is incorrect. C de hydrogenation means that we are removing hydrogen from the structure by forming P bonds. In this case, once again, we are not affecting the molecular formula, the dehydration removal of water from the structure. Well, once again, we are not removing anything from the structure because it essentially has the same molecular formula at the end of the process. And since the molecular formula is exactly the same. But the connectivity of atoms, the first those are isomers and the process is called isomerization. So the answer would be a thank you for watching.

Which of the reactions given in Problems 12.72 represent isomerizations where the reactants and products are structural isomers?
a. glucose to glucose-6-phosphate
b. glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate
c. dihydroxyacetone phosphate to glyceraldehyde-3-phosphate

Verified video answer for a similar problem:

Key Concepts

Isomerization

Structural Isomers

Reaction Mechanism

Which of the reactions given in Problems 12.72 represent isomerizations where the reactants and products are structural isomers?a. glucose to glucose-6-phosphateb. glyceraldehyde-3-phosphate to 1,3-bisphosphoglyceratec. dihydroxyacetone phosphate to glyceraldehyde-3-phosphate

Verified video answer for a similar problem:

Key Concepts

Isomerization

Structural Isomers

Reaction Mechanism

Which of the reactions given in Problems 12.72 represent isomerizations where the reactants and products are structural isomers?
a. glucose to glucose-6-phosphate
b. glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate
c. dihydroxyacetone phosphate to glyceraldehyde-3-phosphate