Required a high school Biology "Molecular and cellular" material content of the module input and output cells, the memory cells have been introduced in many macromolecules, including proteins, including those not directly macromolecules through cell membrane structure. In order to complete the cell membrane transport of these macromolecules, it must rely on a membrane coated with a small vesicular structures, i.e. vesicles (vesicles) to carry out. So vesicles within the cell, "logistics" played "container" this important role, all macromolecules to be transported must first be reasonably placed in the "container" in order to carry out the next transport. t Corresponding author
Before transport as well as an important task is to choose the path of transport. As the "logistics" system need time to transport a variety of macromolecules within the cell to make it out to maintain a normal life active cells. Therefore, the "logistics" orderly intracellular transport needs for protection. Randy Xieke Man found through the study of yeast cells in the memory cells in three genes. These three different genes will be divided into three types of vesicles, the vesicles as to "navigation" system set a different destination, guide the orderly arrival of vesicles along the best path to each transport . In addition, intracellular "logistics" can not only lead the way of loading containers and navigation systems, in order to "logistics" system high-speed operation, microtubules and actin filaments within cells constitutes a "highway" within the cell. Meanwhile, the molecular motors on the cytoskeleton vesicles as the "engine." Provide a powerful impetus.
