or liquid within the cell (ICF) that sometimes the matrix C also can be read the same liquid that is within the cells are found. by membranes to are divided. In the cells of eukaryotic, etc. by the cell membrane, surrounded and part of the cytoplasm is. The cytoplasm contains mitochondria, etc. and other vacuole-free, but includes the structure and the fluid within the vacuole will not be. The core of the cell separate. In are a large part of the chemical reactions of metabolism in The occurs. A small number of reactions in the membrane or space fairy occur. In, eukaryotes also a large number of reactions in and a portion is also within the vacuole are on the up. a mixture complex of dissolved substances in the water. Water a large part of The make. ions such as sodium and potassium in The with the concentration of this ion in the fluid outside the cell is different. These differences in processes such as the regulation of (Osmoregulation), and messaging, cellular (Cell signaling) are important. Although may be simple mixtures of molecules to look, but several levels of organizing, it can be seen.