Which function involves beaten whites that hold air, used to create a foam like meringue?

Which function involves beaten whites that hold air, used to create a foam like meringue?

• A. Binder
• B. Foams
• C. Leavening
• D. Emulsifier

Answer: (B)

Beaten whites that hold air form a foam, delivering lightness and structure through aeration. When egg whites are whipped, the proteins unfold and link into a scaffold around each air bubble, creating a stable network. This network traps the air and, as heat is applied, coagulates to set the shape, giving the characteristic light, airy texture of meringue and similar desserts. That is why this function is described as foams: it centers on creating and stabilizing air-filled structures. The other roles describe different tasks—binders hold ingredients together, leavening generally refers to producing gas to rise a batter or dough, and emulsifiers help oil and water mix—so they don’t specifically capture and maintain air in a whipped white foam.

Beaten whites that hold air form a foam, delivering lightness and structure through aeration. When egg whites are whipped, the proteins unfold and link into a scaffold around each air bubble, creating a stable network. This network traps the air and, as heat is applied, coagulates to set the shape, giving the characteristic light, airy texture of meringue and similar desserts. That is why this function is described as foams: it centers on creating and stabilizing air-filled structures. The other roles describe different tasks—binders hold ingredients together, leavening generally refers to producing gas to rise a batter or dough, and emulsifiers help oil and water mix—so they don’t specifically capture and maintain air in a whipped white foam.