A Cytosol and its functions >Cytosol: The region of fluid content of the cytoplasm outside of the membranous organelles. Aqueous solution of large and small molecules including filaments of cytoskeleton which act as organizer for some order >The cytosol is the site of protein synthesis and degradation or modification. It also performs most of the cell,s intermediary metabolism.ØCytosol: The region of fluid content of the cytoplasm outside of the membranous organelles. Aqueous solution of large and small molecules including filaments of cytoskeleton which act as organizer for some order. ØThe Cytosol is the site of protein synthesis and degradation or modification. It also performs most of the cell’s intermediary metabolism. A. Cytosol and its functions