33. Which of the following statements is true for the shown reaction? P-D-CH₂ P-D-CH₂ CH₂OH OH A O C=O CH₂ Coo A HQ OH 4 OH O CH₂OH HOO-P Н B A. The reaction is catalyzed by PFK-1 B. Stimulation of the reaction eventually slows down gluconeogenesis C. Inhibition of glyceraldehyde 3-phopshate dehydrogenase leads to the accumulation of the product B D. All of the above E. None of the above 34. Which of the following statements is true for the shown reaction? Coo COO™ I C-O-℗ + CO₂ "CH₂ B A. Insulin can eventually inhibit the reaction B. The reaction only take place in the presence of acetyl-CoA C. The product B is a high-energy molecule, and the next logical step is to use the energy released from B to synthesize ATP D. All of above E. None of the above
33. Which of the following statements is true for the shown reaction? P-D-CH₂ P-D-CH₂ CH₂OH OH A O C=O CH₂ Coo A HQ OH 4 OH O CH₂OH HOO-P Н B A. The reaction is catalyzed by PFK-1 B. Stimulation of the reaction eventually slows down gluconeogenesis C. Inhibition of glyceraldehyde 3-phopshate dehydrogenase leads to the accumulation of the product B D. All of the above E. None of the above 34. Which of the following statements is true for the shown reaction? Coo COO™ I C-O-℗ + CO₂ "CH₂ B A. Insulin can eventually inhibit the reaction B. The reaction only take place in the presence of acetyl-CoA C. The product B is a high-energy molecule, and the next logical step is to use the energy released from B to synthesize ATP D. All of above E. None of the above
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:### Biochemical Reactions and Their Implications
#### Question 33: Reaction Catalysis and Its Effects
**33. Which of the following statements is true for the shown reaction?**
The diagram illustrates a biochemical reaction involving compound A converting into compounds B, C, and D, with the structural formulas indicated. The possible statements regarding the reaction are:
A. The reaction is catalyzed by PFK-1
B. Stimulation of the reaction eventually slows down gluconeogenesis
C. Inhibition of glyceraldehyde 3-phosphate dehydrogenase leads to the accumulation of the product B
D. All of the above
E. None of the above
**Illustration Description:**
- **Reactant (A)**: Contains a phosphate group (P) attached to a chain that includes carbon atoms and hydroxyl groups.
- **Product (B)**: Contains a similar structure with a phosphate group but varies slightly in configuration.
- **Intermediates (C and D)**: Not specifically detailed in the figure but transition between the states of A and B.
### Question 34: Metabolic Pathway Analysis
**34. Which of the following statements is true for the shown reaction?**
The diagram depicts another biochemical reaction, converting compound A into compound B, with byproducts labeled C and D, including the production of CO₂.
A. Insulin can eventually inhibit the reaction
B. The reaction only takes place in the presence of acetyl-CoA
C. The product B is a high-energy molecule, and the next logical step is to use the energy released from B to synthesize ATP
D. All of the above
E. None of the above
**Illustration Description:**
- **Reactant (A)**: Includes multiple carboxyl groups and a carbon skeleton.
- **Product (B)**: Contains a phosphorylated group (P) and a slightly different carbon structure.
- **Byproduct (CO₂)**: Carbon dioxide is released in the reaction.
- **Intermediates (C and D)**: They transition from A to B.
### Explanation of Reactions:
Both questions involve detailed biochemical reactions prevalent in metabolic pathways:
- The first reaction might involve glycolysis or a similar pathway, given the possible involvement of enzymes like PFK-1 and glyceraldehyde 3-phosphate dehydrogenase.
- The second reaction implies decarboxylation or phosphorylation reactions, essential for energy production and
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