HUMAN NUTRITION

NUTRITION

CARBOHYDRATES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the main difference between glucose and fructose structure?
A
Glucose makes a six membered ring, and fructose makes a five membered ring.
B
Glucose forms a pyranose ring structure, whereas fructose makes a furan ring structure
C
Glucose is an aldohexose, whereas fructose is a ketohexose.
D
All three answers are right!
Explanation: 

Detailed explanation-1: -What is the primary difference between glucose and fructose? Glucose and fructose are isomers because they have an identical molecular formula but different structural formulas. Glucose consists of an aldehyde group while fructose consists of a ketone functional group.

Detailed explanation-2: -Fructose is a structural isomer of glucose and galactose, meaning that its atoms are actually bonded together in a different order. Glucose and galactose are stereoisomers (have atoms bonded together in the same order, but differently arranged in space). They differ in their stereochemistry at carbon 4.

Detailed explanation-3: -These both contain six carbon atoms and have the same molecular formula, but the only difference is at the functional group. Glucose has an aldehyde functional group and fructose has a ketone functional group.

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