They contain carbon, hydrogen, oxygen and nitrogen and usually sulfur, occasionally phosphorus. Proteins form a large and essential part of the body mass, comprising especially cell membranes, connective tissue, muscles, enzymes, hormones, blood proteins. To maintain this mass the diet must contain a high proportion of protein, especially in growing animals and those recovering from debilitating diseases.
Russian composer Sergei Prokofiev wrote Peter and the Wolf in 1936 after returning to Moscow following a 19-year, self-imposed exile. It is a children's musical story that teaches about the orchestra by introducing various characters portrayed by seven themes played on either solo instruments or groups of instruments.
Peter was married. He was a fisherman with his brother Andrew. His home was in Capernaum. When Jesus called him to be an apostle, he was given the added name Cephas (Aramaic: stone, Greek: Petros, which in English is rendered as Peter). Peter was one of the three main apostles, along with James and John, who were chosen by Jesus to be present during certain important moments of His ministry. One trait of Peters character that stands out in the New Testament account, is his impetuosity.