Difference Between Glucose and Fructose : Glucose and fructose are two types of sugars found in our food. Glucose, with its hexose structure, quickly gives us energy and is often called our body's preferred fuel. It's in things like bread.
On the other hand, fructose, with its ketone group, is a natural sweetener found in fruits like apples and honey. Now, for those preparing for the medical entrance exam with NEET syllabus , it's important to know that both these sugars play roles in our body's energy processes.Difference Between Glucose and Fructose | ||
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Parameter | Glucose | Fructose |
Chemical Formula | C₆H₁₂O₆ | C₆H₁₂O₆ |
Isomeric Form | Aldose | Ketose |
Structural Isomerism | Stereoisomerism (D-glucose and L-glucose) | Stereoisomerism (D-fructose and L-fructose) |
Sweetness | Moderately sweet | Sweeter than glucose |
Natural Source | Found in honey, fruits, and vegetables | Abundant in fruits and honey |
Metabolism | Rapidly absorbed in the bloodstream | Metabolized in the liver |
Effect on Blood Sugar | Raises blood sugar levels | Has a lower glycemic index than glucose |
Contribution to Energy | Primary energy source in the body | Converted to glucose for energy use |
Role in Glycolysis | Directly enters glycolysis pathway | Converted to glucose-6-phosphate before entering glycolysis |
Chemical Bonds | Alpha and beta glucose forms | Beta-fructofuranose form |
Bond Configuration | C1 carbon has a hemiacetal group | C2 carbon has a ketone group |
Number of Chiral Carbons | Four chiral carbons | Three chiral carbons |