This document discusses cereals, starch, and noodles/pasta. It notes that cereals are the most important food crops and include grains like rice, wheat, and corn. Starch is the second most abundant organic substance on earth found in plants. It is a polysaccharide made up of glucose molecules and the two main types are amylose and amylopectin. Common sources of starch include cereal grains, legumes, roots, and tubers. Noodles and pasta are foods made from starch that include varieties like spaghetti, lasagna, and pancit canton.