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Triose phosphate isomerase catalyzes the conversion of dihydroxyacetone phosphate (DHAP) into glyceraldehyde-3-phosphate (G3P). Which of the following illustrates this chemical reaction? a) A b) B c) C d) D

Triose phosphate isomerase catalyzes the conversion of dihydroxyacetone phosphate (DHAP) into glyceraldehyde-3-phosphate (G3P). Which of the following illustrates this chemical reaction? a) A b) B c) C d) D

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Triose phosphate isomerase catalyzes the conversion of dihydroxyacetone phosphate (DHAP) into glyceraldehyde-3-phosphate (G3P). Which of the following illustrates this chemical reaction?

a) A

b) B

c) C

d) D

**Description of Chemical Reactions:** The image displays four diagrams labeled A, B, C, and D, illustrating chemical transformations involving phosphorylated organic molecules. Each diagram shows a reaction with structural formulas depicting reactants and products. **A.** - **Reactant:** The molecule at the start has the structure: - A three-carbon backbone with the second carbon hydroxylated (OH group attached) and a phosphate group (\( \text{PO}_3^{2-} \)) attached to the third carbon. - **Product:** After the reaction, the structure retains the three-carbon backbone, maintaining the phosphate group on the third carbon, but with a carbonyl (C=O) instead of the original hydroxyl group on the second carbon. **B.** - **Reactant:** The original molecule contains a three-carbon backbone with hydroxyl (OH) groups on the first and third carbons. - **Product:** The resulting molecule maintains the first carbon hydroxylated, but the third carbon is now linked to a phosphate group (\( \text{PO}_3^{2-} \)), and the hydroxyl group on the third carbon is eliminated. **C.** - **Reactant:** The structure here starts with a three-carbon backbone, as seen before, with a hydroxyl group on the second carbon and a single phosphate group attached. - **Product:** The product maintains its three-carbon structure but now has an additional phosphate group attached, resulting in two \(\text{PO}_3^{2-}\) groups in sequence on successive carbon atoms, indicating further phosphorylation. **D.** - **Reactant:** Initially, the molecule displays a three-carbon backbone, a hydroxyl group on the second carbon, and a phosphate group (\( \text{PO}_3^{2-} \)). - **Product:** The structure converts to include two phosphate groups on different carbons, suggesting a shift in the position of phosphorylation. **Key Concepts:** - These diagrams illustrate simple transformations of biochemical importance, such as phosphorylation and dephosphorylation. - The changes highlight essential processes in metabolism relevant to energy transfer and storage. - Understanding these transformations can aid in grasping more complex biochemical pathways, such as glycolysis or signal transduction. These diagrams can serve as educational material for understanding basic biochemical reactions and molecular structure transformations.
Transcribed Image Text:**Description of Chemical Reactions:** The image displays four diagrams labeled A, B, C, and D, illustrating chemical transformations involving phosphorylated organic molecules. Each diagram shows a reaction with structural formulas depicting reactants and products. **A.** - **Reactant:** The molecule at the start has the structure: - A three-carbon backbone with the second carbon hydroxylated (OH group attached) and a phosphate group (\( \text{PO}_3^{2-} \)) attached to the third carbon. - **Product:** After the reaction, the structure retains the three-carbon backbone, maintaining the phosphate group on the third carbon, but with a carbonyl (C=O) instead of the original hydroxyl group on the second carbon. **B.** - **Reactant:** The original molecule contains a three-carbon backbone with hydroxyl (OH) groups on the first and third carbons. - **Product:** The resulting molecule maintains the first carbon hydroxylated, but the third carbon is now linked to a phosphate group (\( \text{PO}_3^{2-} \)), and the hydroxyl group on the third carbon is eliminated. **C.** - **Reactant:** The structure here starts with a three-carbon backbone, as seen before, with a hydroxyl group on the second carbon and a single phosphate group attached. - **Product:** The product maintains its three-carbon structure but now has an additional phosphate group attached, resulting in two \(\text{PO}_3^{2-}\) groups in sequence on successive carbon atoms, indicating further phosphorylation. **D.** - **Reactant:** Initially, the molecule displays a three-carbon backbone, a hydroxyl group on the second carbon, and a phosphate group (\( \text{PO}_3^{2-} \)). - **Product:** The structure converts to include two phosphate groups on different carbons, suggesting a shift in the position of phosphorylation. **Key Concepts:** - These diagrams illustrate simple transformations of biochemical importance, such as phosphorylation and dephosphorylation. - The changes highlight essential processes in metabolism relevant to energy transfer and storage. - Understanding these transformations can aid in grasping more complex biochemical pathways, such as glycolysis or signal transduction. These diagrams can serve as educational material for understanding basic biochemical reactions and molecular structure transformations.
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