Which three dietary monosaccharides are absorbed directly into the bloodstream during digestion?
ASucrose, lactose and maltose
BGlucose, fructose and galactose
CGlucose, sucrose and lactose
DFructose, maltose and galactose
Answer & Solution
Correct answer: B. Glucose, fructose and galactose
1. Fructose is one of the three dietary monosaccharides.
2. The other two are glucose and galactose.
3. All three are absorbed directly into the bloodstream during digestion.
4. Sucrose, lactose and maltose are disaccharides, so they must be split before absorption.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 7 "Cellular Respiration", section 7.6 Connections of Carbohydrate, Protein, and Lipid Metabolic Pathways_
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