Which monosaccharide requires no digestion and can be absorbed directly into the bloodstream?
A
Sucrose
B
Lactose
C
Fructose
D
Glucose
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1
Begin by understanding the structure and classification of carbohydrates. Carbohydrates are divided into monosaccharides, disaccharides, and polysaccharides. Monosaccharides are the simplest form and include glucose, fructose, and galactose.
Recognize that monosaccharides do not require digestion to be absorbed into the bloodstream. They are small enough to pass through the intestinal lining directly.
Identify the monosaccharides listed in the options: sucrose and lactose are disaccharides, while fructose and glucose are monosaccharides.
Understand that glucose is the primary monosaccharide used by the body for energy. It is absorbed directly into the bloodstream without the need for enzymatic breakdown.
Conclude that glucose is the monosaccharide that requires no digestion and can be absorbed directly into the bloodstream, making it the correct answer.