Which substance is a monosaccharide? The simple sugars defined
                                
                                
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                                    3 min read                                
                            
                                Monosaccharides are the most fundamental building blocks of all carbohydrates. A monosaccharide, or "simple sugar," cannot be broken down into smaller sugar units through hydrolysis. Knowing which substance is a monosaccharide is crucial for understanding how our bodies derive and use energy from food.