A chemical-sensing field effect transistor (FET) in the absence of an applied gate potential is shown. Source (-) (Gate) ( + ) Drain Metal contact SiO insulator Depletion region O O O On o O O O O O O C O O O O O O O O O O (Base) Electrical contact between source and baseExplain how a chemical-sensing FET generates a response to an analyte by arranging the statements in order. First step A voltage is applied between the source and the drain, but no current flows. The sample is introduced to the gate. A positive potential is applied to the gate, which attracts electrons from the base. A current flows between the source and drain as a conductive channel forms. Analyte adsorbs onto the chemically sensitive gate, resulting in a change in potential of the gate. The current flowing between the source and the drain changes. A potential is applied to the external circuit to return the current to its original value. Last step