Sucrose molecule is made up of:

A gluco pyranose an a fructo furanose

The answer is (2) a gluco pyranose and a fructo furanose.

Fructose is a ketohexose, which means that it has a ketone group and six carbon atoms. It can exist in two forms: a pyranose form, which is a six-membered ring, and a furanose form, which is a five-membered ring.

Glucose is an aldohexose, which means that it has an aldehyde group and six carbon atoms. It can also exist in two forms: a pyranose form and a furanose form.

Fructose molecules are made up of a gluco pyranose and a fructo furanose. The gluco pyranose and fructo furanose are linked together by a glycosidic linkage. The glycosidic linkage is formed when the hydroxyl group on the first carbon atom of the gluco pyranose reacts with the ketone group on the second carbon atom of the fructo furanose.