Question: Most metabolic pathways are relatively long and appear to be very complex (the pathways comprise …

Most metabolic pathways are relatively long and appear to be
very complex (the pathways comprise numerous chemical reactions in
series). Furthermore, anabolic and catabolic pathways do not use
the same pathways in the forward and reverse directions. Using
one example from carbohydrate metabolism, explain
the purpose of this complexity with respect to
energetics.