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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Question
Draw the electron pushing mechanism, including the cofactor’s minimal structure, for the following transformation.
Transcribed Image Text:The image depicts a chemical reaction involving the conversion of one molecule to another, facilitated by NADH.
### Chemical Structures:
- **Left Structure**:
- The molecule depicted is an α-keto acid known as 2-oxoglutaramate (also referred to as α-ketoglutaramic acid). This structure includes:
- An amino group (H₂N) attached to the carbon adjacent to a carboxylate group (COO⁻).
- A zwitterionic nature, with a positively charged ammonium group (H₃N⁺) and a negatively charged carboxylate group (COO⁻).
- **Right Structure**:
- The resulting molecule after the reaction is an L-amino acid. This structure includes:
- A hydroxyl group (OH) replacing the oxo group in the original structure.
- Retains the zwitterionic form with a positively charged ammonium group (H₃N⁺) and a negatively charged carboxylate group (COO⁻).
### Reaction Process:
- **NADH**:
- The horizontal arrow represents the facilitation of this reaction by NADH, which acts as a reducing agent in many biochemical reactions.
This diagram is relevant for understanding biochemical pathways where NADH plays a critical role in reduction reactions, particularly in amino acid metabolism.
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