What is the firm elastic substance in flour that affects the texture?

• A. Gluten
• B. Starch
• C. Water
• D. Protein

Answer: (A)

Gluten is the firm elastic substance in flour. When flour meets water and is worked through mixing or kneading, two proteins—glutenin and gliadin—link to form a stretchy network. This gluten network holds gas bubbles during rising, giving dough its elasticity and strength. That elasticity directly shapes texture: more developed gluten makes bread chewy and springy, while less gluten or inadequate development yields a softer, crumblier crumb typical of pastries. Starch provides bulk and structure but isn’t responsible for elasticity, water enables gluten development but isn’t the elastic substance itself, and protein is the broad category—gluten is the specific elastic protein network responsible for texture.