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Questions and Answers
What is the molecular formula of fructose?
What is the molecular formula of fructose?
What type of functional group is present at carbon number 2 in fructose?
What type of functional group is present at carbon number 2 in fructose?
In what configuration is the hydroxyl group on carbon 1 positioned in alpha-D-(−)-fructofuranose?
In what configuration is the hydroxyl group on carbon 1 positioned in alpha-D-(−)-fructofuranose?
What is the shape of the cyclic forms of fructose?
What is the shape of the cyclic forms of fructose?
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Which of the following statements about fructose is false?
Which of the following statements about fructose is false?
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Study Notes
Fructose
- Fructose is a ketohexose, a monosaccharide found in fruits, honey, and vegetables
- It's obtained along with glucose during sucrose hydrolysis
- Its molecular formula is C6H12O6
- It has a ketone functional group at carbon 2 and six carbons in a straight chain
- It belongs to the D-series and is a levorotatory compound, written as D-(−)-fructose
- It exists in two cyclic forms (furanose)
- These forms are created by adding an -OH group at carbon 5 to the C=O group
- A furanose is a five-membered cyclic compound similar to furan (which contains one oxygen and four carbons)
- Two anomers of fructose exist: α-D-(−)-fructofuranose and β-D-(−)-fructofuranose
- These are represented by Haworth structures.
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Description
Explore the unique properties of fructose, a ketohexose monosaccharide found in fruits and honey. Learn about its molecular structure, cyclic forms, and the anomers that represent its distinct configurations. This quiz delves into the chemical and structural aspects of fructose.
