All living organisms are made up of cells, and elucidation of the structure and function of cells is essential for the understanding of living organisms. Cells are equipped with mechanisms that allow them to proliferate, maintain homeostasis, and adapt to changes in the external environment. These biological phenomena are made possible by the elaborate coordination of molecules and organelles in the cell, which, when disrupted, can lead to various diseases. Fujifilm Wako offers a variety of reagents to observe and measure cell structure and functions.