BIOL 3113 Lecture Notes - Lecture 20: Growth Factor, Mitosis, Cytokinesis
Document Summary
The cell cycle - orderly sequence of events by which a cell duplicates its contents and divides into two. Cell-cycle control system - network of regulatory proteins that governs progression of a eucaryotic cell through the cell cycle. Cell-cycle control system - responds to various signals from inside (monitoring of the progression through cell cycle) and outside the cell (monitoring of the conditions in cell environment) The cell cycle control system consists of a series of biochemical checkpoints at which the cycle arrests until certain conditions are met and/or certain external signals are received. Duration of the cell cycle varies greatly from one cell type to another (from minutes to years) The cell cycle control system - series of biochemical checkpoints. Most interphase cells are arrested at this point. Passage through this point triggers entry into the s phase. Passage through this point triggers entry into the m phase.
