Cell
A unit of varying dimension in a landfill which is isolated from the environment by 6 to 12 inches of soil cover. A cell is one day’s waste or less. A cell is covered with soil at the end of each day.
Cell (L. cella, small room)
The smallest structural unit of living matter capable of functioning independently; a microscopic mass of protoplasm surrounded by a semi-permeable members, usually including one or more nuclei and various non-living products, capable –either alone or by interacting with other cells-of performing all the fundamental functions of life.
Cell cycle
Sequence of stages that a cell passes through between one division and the next. The cell cycle oscillates between mitosis and interphase, which is divided into G,S, and G2. In the G phase there is a high rate of biosynthesis and growth; in the S phase there is the doubling of the DNA content as a consequence of chromosome replication; in the G2 phase the final preparations of cell division (cytokinesis) are made cell differentiation continuous loss of physiological and cytological characters of young cells, resulting in getting the characters of adult cells. The unspecialized cells become modified and specialized for the performance of specific functions. Differentiation results from the controlled activation and de-activation of genes
