. . "Short films"@en . . . . . . "Educational films"@en . "World of chemistry (Motion picture). Program 23"@en . . . "Proteins, structure and function"@en . "Proteins, structure and function The Genetic code"@en . "Proteins, structure and function ; The Genetic code"@en . . "No. 23: The mysteries of proteins, a vital class of molecules, are unravelled by Hoffmann. No. 24: Students examine how the body manufactures the proteins required to sustain life and how these proteins are passed from generation to generation."@en . . "Video recordings for the hearing impaired"@en . . . . . . . . . "Proteins, structure and function ; genetic code"@en . . "Nonfiction films"@en . . "Science films"@en . . . . . "Pt. 23 teaches that proteins are large polymers built from twenty amino acids and relates the number, kind, and sequence of amino acids. The proteins hair, wool, silk, and enzymes are discussed. Pt. 24 explains how the human body manufactures complex proteins to sustain life and relates how traits are passed on from generation to generation. The structure and role of the nucleic acids, DNA and RNA, are investigated."@en . . . . . . . .