Final answer:
The form of malate dehydrogenase involved in the Citric Acid Cycle is MDH2, which catalyzes the conversion of malate into oxaloacetate and produces NADH.
Step-by-step explanation:
The form of malate dehydrogenase involved in the Citric Acid Cycle (CAC) is MDH2. This enzyme is responsible for the conversion of malate into oxaloacetate, a reaction that also produces NADH. This is a crucial step in the citric acid cycle that contributes to the overall process of energy production within the cell. The enzyme binds to malate in a way that neutralizes the charges of the two carboxylates on the malate molecule, typically using arginine side chains. Additionally, a histidine side chain may act as a base during this reaction.