Final answer:
The watery substance that makes up the cytoplasm is called cytosol.
Step-by-step explanation:
The watery substance that makes up the cytoplasm is called cytosol. Cytosol is the fluid portion of the cytoplasm that surrounds the organelles within a cell. It is a gel-like substance composed of water, salts, and organic molecules such as proteins and carbohydrates.
Learn more about cytoplasm and its components