In cereal grains, which component primarily supplies starch and protein?

In cereal grains, which component primarily supplies starch and protein?

• A. Hull
• B. Endosperm
• C. Germ
• D. Bran

Answer: (B)

The endosperm is the part that primarily supplies starch and protein. It’s the largest component of a cereal grain and serves as the storage tissue that feeds the developing embryo during germination. The starch granules in the endosperm provide most of the grain’s carbohydrate, while the protein present there becomes the main protein content you find in milled cereals and flour. The hull (outer protective layer) and bran share fiber and minerals, and the germ is the small embryo rich in fats and vitamins, but they don’t supply starch and protein as its main function. Therefore, the endosperm best fits the description.

The endosperm is the part that primarily supplies starch and protein. It’s the largest component of a cereal grain and serves as the storage tissue that feeds the developing embryo during germination. The starch granules in the endosperm provide most of the grain’s carbohydrate, while the protein present there becomes the main protein content you find in milled cereals and flour. The hull (outer protective layer) and bran share fiber and minerals, and the germ is the small embryo rich in fats and vitamins, but they don’t supply starch and protein as its main function. Therefore, the endosperm best fits the description.