What is the product of the reaction catalyzed by succinate dehydrogenase in the Citric Acid Cycle?

The reaction catalyzed by succinate dehydrogenase in the Citric Acid Cycle specifically converts succinate into fumarate. This occurs during the cycle when succinate is oxidized, and the enzyme facilitates the removal of two hydrogen atoms from succinate. In this process, FAD (flavin adenine dinucleotide) is reduced to FADH2, which is an important electron carrier in cellular respiration. As a result, fumarate is formed, marking a key step in the cycle where the substrate undergoes a transformation due to the action of succinate dehydrogenase.