C-peptide of human insulin is: a. A part of mature insulin molecule b. Responsible for the formation of disulphide bridges c. Removed during maturation of pro- insulin to insulin d. Responsible for its biological activity
Option C. In mammals, including humans, insulin is synthesised as pro-hormone which needs to be processed before it becomes a fully mature and functional hormone. It contains an extra stretch called the C peptide which is removed during maturation into insulin.
