Who is defined as one ordained to carry out the works of the Catholic Church and the bishop of Roma?

The individual defined as one ordained to carry out the works of the Catholic Church and the Bishop of Roma is a priest. In the Catholic Church, priests serve as representatives of Christ and are tasked with administering the sacraments, preaching, and offering spiritual guidance to the faithful. They are ordained through the sacrament of Holy Orders, which is a critical aspect of their role in the church hierarchy.

The term "Bishop of Roma" refers to the Pope, who is the leader of the worldwide Catholic Church and holds the highest authority over all priests and the church's operations. Priests work under the authority of their bishops, including the Pope, to fulfill their responsibilities in the parish community.

In contrast, deacons are also ordained but have a different specific role, primarily assisting priests in various functions, including preaching and serving the community. Cardinals are senior church officials, often bishops, who have the additional role of advising the Pope and participating in the selection of new Popes. Parishioners are simply members of the church community and do not hold any ordained status.

Thus, the priesthood is a vital element in the Catholic faith, connecting the laity with the broader ecclesiastical structure established by leaders like the Pope.