Medical College Admission Test (MCAT) 2025 – 400 Free Practice Questions to Pass the Exam

Sucrose is a disaccharide composed of two monosaccharides: glucose and fructose. The glycosidic linkage in sucrose specifically forms between the anomeric carbon of glucose (which is in the pyranose form) and the anomeric carbon of fructose (which is in the furanose form). This linkage results in a unique bond structure, classified as an α,β linkage.

The correct answer signifies this structural relationship by using the names of the monosaccharides involved. "Glucopyranosyl" describes the glucose component (which adopts a six-membered ring structure), while "fructofuranosyl" refers to the fructose component (that adopts a five-membered ring structure). These terms indicate the type of sugar involved and the configuration within the molecule, which are essential for naming the glycosidic linkages accurately.

In this context, the naming in the option captures the necessary detail about the contributions of both components of sucrose, thereby aligning with chemical nomenclature standards for glycosidic bonds. This specific naming indicates the structural complexity and provides clarity on the nature of the disaccharide.