What is the role of the intercellular substance in tissues?

The intercellular substance has an important role in tissues. All tissues are composed of cells, and the space between them is filled with a special fluid. Thanks to this fluid, an exchange of substances occurs between cells, since there are no voids between them. The intercellular substance creates comfortable conditions for the development of new cells and maintaining the life of existing ones. The peculiarity of the intercellular substance is that the concentration of various salts in the liquid is equal to the concentration of salts in the cells. When the balance is imbalanced, deformation of the cells occurs.