Except as otherwise provided by this chapter, in this chapter:
(1) "Appropriated money" means money appropriated by the legislature through the General Appropriations Act or other law.
(2) "State agency" means:
(A) a department, commission, board, office, or other entity in the executive branch of state government;
(B) the supreme court, the court of criminal appeals, another entity in the judicial branch of state government with statewide authority, or a court of appeals; or
(C) a university system or an institution of higher education as defined by Section 61.003, Education Code, except that a public junior college is excluded from the meaning of the term in all of Subchapter C except Section 2113.101 and all of Subchapter D except Section 2113.205.