Which of the following has the storage tissue of cereal grains?
A. Food
B. Seed
C. Endosperm
D. Embryo

Hint: Grains belong to the monocot family. The starchy endosperm of the seeds square measure well developed to supply nutrition to the developing embryo. Reproductive structure is principally shaped until the maturation of the embryo.

Complete step by step answer:Storage super molecules within the reproductive structure of cereals and therefore the cotyledons of dicot square measure found primarily in protein bo. In some species, like wheat, the super molecule bodies square measure degraded upon dehydration of the maturing seed, however in oats, they persist.
Using histochemical techniques, known super molecule bodies within the protein layer and within the scutellar parenchyma that stained with the Sakaguchi reaction for essential amino acid and with alkalic quick inexperience that stains basic super molecules. They conjointly found various stained super molecule bodies throughout the starchy reproductive structure, that differed from their findings with wheat. These results in agreement with the amino alkanoic acid analyses, that showed that proteins from oat bran and starchy reproductive structure were similar in essential amino acid content, 6.8 and 6.6%, severally. Wheat, in distinction, had 12.3% essential amino acid within the protein layer super molecule and solely four.0% in starchy reproductive structure supermolecules. Thus, a lot of uniform distribution of arginine-rich super molecules in oats was incontestable. Conjointly reported that oat starchy reproductive structure super molecule bodies were distributed in a very super molecule matrix that was stained by quick inexperience at hydrogen ion concentration two.0. Aleurone, scutellum, and starchy reproductive structure super molecule bodies had unstained areas.
Thus, the correct answer is (C) Endosperm.

Note:The central part of the reproductive structure is the major storage tissue in cereals, accumulating supermolecules (prolamins with varied amounts of 11S-type globulins), and starch. However, 7S globulins and oil are kept within the outer cells of the reproductive structure (the protein layer) and therefore the single seed leaf (scutellum) of the embryo.