Which monosaccharides can form a pyranose via hemiacetal bond?
Understand the Problem
The question is asking which monosaccharides can form a pyranose ring structure through the formation of a hemiacetal bond. This involves understanding the chemical structures of the listed monosaccharides.
Answer
Fructose.
The monosaccharide that can form a pyranose via a hemiacetal bond is fructose (E).
Answer for screen readers
The monosaccharide that can form a pyranose via a hemiacetal bond is fructose (E).
More Information
Fructose is capable of forming a six-membered pyranose ring by forming an internal hemiketal. This is a common form for ketohexoses.
Tips
A common mistake is assuming hexoses only form pyranose rings; some can also form furanose.
Sources
- Pyranoses and Furanoses: Ring-Chain Tautomerism In Sugars - masterorganicchemistry.com
- Cyclic hemiacetals and hemiketals - khanacademy.org
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