Protein or the physical region of the protein that participates in chemical catalysis. In solution proteins also undergo variation in structure through thermal vibration and the collision with other molecules. Proteins can be informally divided into three main classes, which correlate with typical tertiary structures: globular proteins, fibrous proteins, and membrane proteins. Almost all globular proteins are soluble and many are enzymes. Fibrous proteins are often structural, such as collagen, the major component of connective tissue, or keratin, the protein component of hair and nails. Membrane proteins often serve as receptors or provide channels for polar or charged molecules to pass
Quality of Mercy (The Outer Limits) a corner and screams. Quality of Mercy (The Outer Limits) "Quality of Mercy" is an episode of "The Outer Limits" television show. It was first broadcast on 16 June 1995 during the rebooted series' first season. Major John Skokes is taken prisoner during an interstellar war and thrown into a dark cell, where he meets an imprisoned female cadet. After Skokes is thrown into the cell, he sees his fellow prisoner and, suspicious, questions her about her name, background, and unit. Her name is Bree Tristan, and she is a cadet. He spots a strange growth on her arm, and