The Cell Life Cycle
The cell life cycle is a series of changes that a cell goes through from the time it is forms until reproduces itself. This cycle is divided into two major periods: interphase and the mitotic phase.
The interphase cycle is when the cell grows and carries on its usual activities. In addition, the interphase cell prepares the cell for the next cell division. It is divided into three parts: G?, S, and G?. During G? or growth 1, which is the first part of interphase, cells are metabolically active, synthesize proteins rapidly, and growing rapidly. The G? part lasts for several hours however, in cells that divide at a slow pace, it may last for days or years. For the most growth 1, none of the cell activities are directly related to cell division occurs. However, near the end of the G?, the centrioles start to replicate preparing for cell division. The S (synthetic) stage is when DNA replicates itself with two future cells receiving identical copies of the genetic material. In the final stage of interphase, called G? (growth 2), the enzymes needed for the division process are ...
The following program discusses the various stages of the cell life cycle.