A conversion disorder is a relatively uncommon mental disorder in which a person has physical symptoms that no medical condition, physical examination or testing can explain. The person is not faking.. The symptoms do not appear to be under the person's conscious control and they can cause significant distress.
The most important chemical reaction of all is photosynthesis. At first I thought that the most important reaction was respiration, the set of reactions in our cells that keeps us alive by combining glucose with oxygen and provides the energy that keeps us alive. Then I realized that we would not be alive without the oxygen in the first place.
The two most important metabolic processes are the photosynthesis and cellular respiration. Photosynthesis is the process of converting the light energy, usually coming from the sun, in the form of chemical energy that can be used as energy source of any living organisms. Plants and other organisms capable of doing photosynthesis are often... We know that energy and mass are neither created nor destroyed.