Today, the Railroad Retirement program is closely tied to the far better-known Social Security program, and although the Railroad Retirement program and Social Security share a number of common elements, key differences also exist between the two in areas such as funding and benefit structure.
The Cell Cycle. The cell cycle is the life cycle of a cell (Figure 5.3). At the end of the cell cycle, after mitosis has taken place, the parent cell no longer exists; it has given rise to two daughter cells. There are two phases in the cell cycle, interphase and mitosis.
In Eukaryotes energy production is carried out in the mitochondria as a separate function from the rest of the cell. 1  The Citric Acid Cycle is the second stage of cellular respiration. 2  Citric Acid Cycle takes place in the cytosol of prokaryotes.  Citric Acid Cycle takes place in the mitochondria of eukaryotes.