A living system includes different types of tissues in which various physico-chemical processes proceeds under different biological conditions to keep an organism in a living condition. A tissue can be defined as a group of similar or dissimilar cells that perform a common function and have a common origin. All these tissues are composed of cellular elements and their derivatives. The cell is the smallest unit of life in our bodies, example brain cells, skin cells, liver cells, stomach cells, etc and so on. All of these cells have exclusive functions and features and all have some identifiable similarities. All cells have a 'skin', called the plasma membrane, protecting it from the outer environment.In the present work complex impedance spectroscopy of some biological tissues have been studied.