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BIO NMDCAT Carbohydrates
nmdcat.online June 27, 2026

A comparison of the open-chain forms of glucose and fructose reveals that they are

A. Enantiomers
B. Structural isomers
✓
C. Diastereomers
D. Anomers

📝 Explanation

Both have the same molecular formula (C₆H₁₂O₆), but different functional groups—glucose is an aldehyde (aldose) and fructose is a ketone (ketose). This difference in the connectivity of atoms makes them structural (constitutional) isomers.

📖 Additional Information

  • Enantiomers
  • Structural isomers
  • Diastereomers
  • Anomers

Both have the same molecular formula (C₆H₁₂O₆), but different functional groups—glucose is an aldehyde (aldose) and fructose is a ketone (ketose). This difference in the connectivity of atoms makes them structural (constitutional) isomers.

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