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Biology / Campbell Biology 9 / Chapter 9 / Problem 9.4

Campbell Biology | 9th Edition | ISBN: 9780321558237 | Authors: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson

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During the redox reaction in glycolysis (step 6 in Figure

Chapter 9, Problem 9.4

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QUESTION:

During the redox reaction in glycolysis (step 6 in Figure 9.9), which molecule acts as the oxidizing agent? The reducing agent?

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QUESTION:

During the redox reaction in glycolysis (step 6 in Figure 9.9), which molecule acts as the oxidizing agent? The reducing agent?

ANSWER:

Step 1 of 2

The 6th step of glycolysis is the conversion of Glyceraldehyde 3-phosphate to 1, 3-Bisphosphoglycerate. The enzyme Triose phosphate dehydrogenase catalyzes this step.

This step involves a redox reaction in which the sugar "glyceraldehyde 3-phosphate” acts as a reducing agent by itself being oxidized by the transfer of electrons and H ions to NAD+. And NAD+ acts as an oxidizing agent by getting reduced, accepting electrons and H+ from the sugar, and forming NADH.

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