Even with those possibilities, studying the microorganisms will reward scientists with a greater understanding of how life can exist in isolation from the surface and give explanations of what life might have been like millions of years ago. These microorganisms can be a link to our future. First of all, microorganisms are very small bacteria unable to be seen by the naked eye. They are unicellular prokaryotes that have no true nucleus. Metabolism is the totality of an organism's chemical processes which consist of catabolic and anabolic pathways.
Metabolism manages the material and energy resources of the cell.
The catabolic pathways of metabolism release energy by breaking down complex molecules into simpler compounds. While the anabolic pathways consume energy to build complicated molecules from simpler ones. These two processes are the building up and breaking down avenues of the metabolic map. They are used in such a way that the energy released from the breaking down reaction can be used to make the building up reaction. The metabolism refers to the rate at which energy can be anabolized and catabolized.