An overloading of the gel with a soluble protein creates a semicircular band of this protein (e. g. in the marker lane of the image at 66 KDa), allowing other proteins with similar molecular weights to be covered.
Like arrowroot, tapioca also comes from the root of a plant, however, in this case it is the root of the Cassava plant. It is ground into powdered form and is often referred to as tapioca flour.
Arrowroot is a commonly used cornstarch substitute, arguably the best out of many in the market right now. Its function is mainly to thicken the. It is a starch extracted from the rootstock or rhizomes of certain plants. It is cultivated in South Africa, Philippines, the Grenadines and Saint Vincent.