by James Penn
Metabolism is a set of physical and chemical processes that occur in
your body for the sustenance of life. Anabolism and catabolism are the
constructive and destructive phases of metabolism. Anabolism uses the
energy produced in the body for helping the cells in their growth and
repair, while catabolism breaks down the complex substances in the body
into simpler substances and in the process produces energy. Your body
needs this energy all the time for the functioning of the various
systems and organs like lungs, heart, kidneys and so on.