Glucose and fructose have the same molecular formula, C6H12O6, but different structures. They are therefore
Correct answer: A. isomers
- A. isomers
- B. polymers
- C. isotopes
- D. identical sugars
Explanation
Isomers share a molecular formula but differ in the arrangement of their atoms, and here glucose carries an aldehyde group while fructose carries a ketone group, which is why only glucose forms a six membered ring. The difference in structure gives a different taste and a different metabolic route despite the identical formula. Isotopes are forms of one element differing in neutron number.
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About Carbohydrates
Carbohydrates are organic compounds classified as monosaccharides, disaccharides and polysaccharides according to their structure and hydrolysis products. The topic covers glycosidic bonds, glucose and fructose, sucrose, lactose and maltose, starch, glycogen and cellulose, along with their roles in energy storage, structural support and food tests.
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