An electric charge generates an electric field. A moving electric charge generates a magnetic field along a magnetic field. When a conductor is run through a magnetic field, an emf is induced in the wire which causes electric current to flow. Both are vector quantities.
Thus, electric field can be produced using a magnetic field and magnetic field can be produced from electric field. The electromagnetic radiation travels by the interaction of the two fields. These fields are perpendicular to each other and the electromagnetic wave travels in a direction perpendicular to both.
Cellular respiration is the process of conversion of food energy (glucose) into chemical energy (ATP). Oxygen and glucose are the reactants in the chemical reaction of this process and carbon dioxide and water are the products.
