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.
Breakthru Films. If Sergei Prokofiev had composed nothing except âPeter and the Wolf,â he would have left a sizable mark. The work has helped introduce generations of children to the instruments of the orchestra and the concept of telling a story through music, fulfilling the goal Prokofiev set for himself in 1936.