What substance makes up about 72% of the cell cytoplasm?

72% of the cytoplasm of the cell is water. Water is an excellent solvent. In a short time, this substance can split many substances due to the dipole moment of its molecules. That is why water has become the basis of all life cells. But water itself has no value without mineral and organic substances, salts and other substances dissolved in it, which create normal conditions for all organelles inside the cell. It is also worth remembering that the amount of water in the cell directly depends on the amount of water behind the cell membrane.