Why do synthetic chemicals and metals tend to bioaccumulate so readily?

Question

Quizplus · Accepted Answer

Synthetic chemicals and metals tend to bioaccumulate because they are often foreign to the metabolism of most organisms. As a result, the needed biochemical systems to remove them from the body do not exist, and they are stored in the body instead. This is because they are not recognized by the enzymes that initiate the breakdown of natural molecules. Over time, these chemicals can accumulate in the tissues of living organisms, which can be passed up the food chain. This causes a higher concentration of the toxin in predators at higher trophic levels. Therefore, the accumulation of synthetic chemicals and metals in the food chain can lead to severe environmental and human health consequences.

Why Do Synthetic Chemicals and Metals Tend to Bioaccumulate So