The main protein found in milk is ________

The main protein found in milk is casein. It is a phosphoprotein, which means that it contains phosphorus. Casein is responsible for the curdling of milk when it is acidified or heated. It is also the main protein in cheese.

Albumin is a water-soluble protein that is found in blood and other bodily fluids. It is also found in egg whites. Globulin is a water-soluble protein that is found in blood and other bodily fluids. It is also found in muscle tissue. Globin is the protein that carries oxygen in the blood.

The correct answer is: D. Casein