Sugar with a five-membered ring structure is called:
Correct answer: B. Furanose
- A. Pyranose
- B. Furanose
- C. Dextrorotatory
- D. Levorotatory
Explanation
The correct answer is furanose because it describes a sugar with a five-cornered ring structure, similar to the heterocyclic compound furan. Pyranose is incorrect, as it refers to a six-cornered ring structure. Dextrorotatory and levorotatory are terms related to the optical rotation properties of compounds and do not describe structural characteristics of sugar rings.
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