Gluten is best described as which of the following?

• A. A fat
• B. A sugar
• C. A mineral
• D. A substance present in cereal grains, especially wheat, that is responsible for the elastic texture of dough. A mixture of two proteins, it causes illness in people with celiac disease.

Answer: (D)

Gluten is a protein complex found in cereal grains, especially wheat, that forms when flour is mixed with water and worked into dough. This dough-formed network comes from two main proteins, gliadin and glutenin, which interact to create elasticity and strength. That gluten network traps gas during rising, giving dough its stretchiness and chewy texture—crucial for many baked products.

It’s not a fat, sugar, or mineral, which is why those descriptions don’t fit. A health note: in people with celiac disease, gluten can trigger an autoimmune reaction, so some individuals must avoid it. But the essential idea for baking and food science is that gluten is a grain-based protein system responsible for the dough’s elastic texture.