The cytoplasm, or cytosol, is a gel-like substance in which the organelles are suspended within the cell. The eucaryotic cell is elaborately subdivided by internal membranes. The nuclear envelope is formed by two concentric membranes. It is supported by the nuclear lamina, a network of protein filaments. The membrane is dotted with nuclear pores.
Chromosomes exist in different states throughout the cell cycle.
Highly condensed chromosomes occur only for a brief period of time. For the rest of the cell cycle they appear as extended threads called chromatin. Chromatin attaches to the nuclear envelope or lamina. Golgi apparatus- receives, modifies, and dispatches proteins and lipids from the ER to other destinations. Both are sorrounded by double membranes.