The ___ of a grain contains most of the grain's carbohydrates.

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Multiple Choice

The ___ of a grain contains most of the grain's carbohydrates.

Explanation:
The starchy interior of the grain—the endosperm—stores most of its carbohydrates. This tissue is rich in starch, providing energy for germination, with only a modest amount of protein. The germ is the small, fat- and nutrient-rich embryo, while the bran and husk are outer protective layers high in fiber and minerals but low in starch. Because of this distribution, the endosperm is the primary source of carbohydrates in grains, and refined flour (which mostly removes bran and germ) is mainly composed of endosperm starch.

The starchy interior of the grain—the endosperm—stores most of its carbohydrates. This tissue is rich in starch, providing energy for germination, with only a modest amount of protein. The germ is the small, fat- and nutrient-rich embryo, while the bran and husk are outer protective layers high in fiber and minerals but low in starch. Because of this distribution, the endosperm is the primary source of carbohydrates in grains, and refined flour (which mostly removes bran and germ) is mainly composed of endosperm starch.

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