Practice MCAT Question - Q54 - Answer!
The basic monomers for synthesizing carbohydrates include
A. glucose, lactose, and glycerol.
B. glucose, lactose, and sucrose.
C. glucose, fructose, and glycogen.
D. glucose, galactose, and fructose.
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The correct answer is (D). Glucose, galactose, and fructose are all carbohydrate monomers (monosaccharides), whereas lactose and sucrose are disaccharides; glycerol is a building block for synthesizing triglycerides (fats); and glycogen is already a large polysaccharide carbohydrate.
