[Solved] The reaction catalyzed by pyruvate carboxylase is an example of a(n)______ reaction because it replenishes the citric acid cycle intermediates that have been siphoned off for use in other reactions. A)amphibolic B)amphipathic C)anaplerotic D)cataplerotic E)none of the above 3,6-dimethylcyclohexene: An organic compound with a six-membered ring structure, having methyl groups attached at the 3rd and 6th positions. Dry Gaseous HBr: Hydrogen bromide gas that is free from water, often used in organic synthesis as a reagent. Step-by-step Mechanism: A detailed description of every stage in a chemical reaction, explaining the process by which reactants convert into products. Major Product: The product of a chemical reaction that is formed in the greatest amount, often favored by thermodynamic or kinetic control.