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Carbohydrate Digestion
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Carbohydrate Digestion
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4. Carbohydrates / Carbohydrate Digestion / Problem 2
Problem 2
What typically happens to most dietary fiber during digestion?
A
Most dietary fiber moves to the large intestine where some is fermented by bacteria and most is excreted in the stool.
B
Most dietary fiber is hydrolyzed to monosaccharides by brush-border enzymes in the duodenum and then absorbed as glucose, an incorrect description of fiber resistance to human digestive enzymes.
C
Most dietary fiber is converted into amino acids in the small intestine before absorption into portal circulation, which misstates fiber fate and metabolic products.
D
Most dietary fiber is directly used as a substrate for immediate hepatic glycogen synthesis via portal uptake of intact polysaccharides, an inaccurate route and utilization.
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