How did the carbon, hydrogen and oxygen atoms in glucose and fructose combine to form sucrose? Include in your description which atoms bonded together from fructose and glucose to form sucrose and which atoms reformed to create a water molecule.

1 oxygen atom and 1 hydrogen atom from the glucose molecule, and 1 oxygen atom from the fructose molecule were taken to make the water molecule. The rest of the atoms in the glucose and fructose molecules (glucose: 6 carbon, 11 hydrogen, 5 oxygen. Fructose: 6 carbon, 12 hydrogen, 5 oxygen.) combine to make sucrose (12 carbon, 22 hydrogen, 11 oxygen).

A glycosidic linkage connects the carbon 1 in glucose and carbon 2 in fructose.

Also OH is removed from carbon 2 of fructose and carbon 1 of glucose to release water

Explanation:

Disaccharides such as Sucrose are formed by the combination of two or more monosaccharide.

A sucrose is formed when glucose (C6H12O6) combines with another monomer named fructose (C6H12O6) though a dehydration process where water is released and a glycosidic bond (- - O--) is formed

Both these monosaccharides have numbering on their carbon atoms starting from the terminal carbon closest to the carbonyl group. A glycosidic linkage connects the carbon 1 in glucose and carbon 2 in fructose.

Also OH is removed from carbon 2 of fructose and carbon 1 of glucose to release water