Physicochemical characteristics of protoplasm?

Protoplasm is an optically homogeneous, elastic, colorless, jelly-like substance from translucent to transparent and semi-viscous appearance. The protoplasm contains about 80-90% water. Seems grainy, contains many vacuoles. It responds well to external stimuli such as electric shock, heat, cold, chemicals, etc.

Many soluble materials such as salts, sugars and minerals are found in the protoplasm as ions or molecules. In addition, many organic substances such as fats and proteins remain soluble. A solution of this type is called a colloidal solution, and soluble particles are called colloids. Protoplasm is a crystal colloidal solution.