Question

which compound is oxidized in the reaction shown below?

Explanation:

Step1: Recall oxidation concept

Oxidation is loss of electrons or increase in oxidation - state. In biochemical reactions, it often involves loss of hydrogen atoms.

Step2: Analyze the reaction

In the given reaction, isocitric acid is converted to α - ketoglutaric acid. Isocitric acid loses hydrogen atoms and electrons which are accepted by NAD⁺ to form NADH + H⁺.

Answer:

Isocitric acid