The governing body of the City of Texas City shall be a commission composed of the mayor and six commissioners to be known as the Commission of the City of Texas City. The members of the city commission shall be elected from the City of Texas City for two-year terms in a manner prescribed elsewhere in this Charter. As hereinafter used in this Charter the word commission shall be construed to mean a mayor and six commissioners. All rules and regulations governing the commission as to terms of office, qualifications, nomination and election, vacancies, and recall elections shall also apply to the mayor. Except as otherwise provided in this Charter or by applicable law the city commission shall be authorized to exercise, or cause to be exercised, all powers conferred upon the city by this Charter or by applicable law.