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Alcohol Metabolism
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Problema 1
Problema 2
Problema 3
Problema 4
Problema 5
Problema 6
Problema 7
Problema 8
Problema 9
Problema 10
Alcohol Metabolism
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9. Alcohol / Alcohol Metabolism / Problema 8
Problema 8
Which reason best explains why ethanol does not require digestion before absorption?
A
Ethanol binds to bile salts in the intestines which directly shuttle it through enterocytes into lymph without prior hydrolysis, a process used by most macronutrients as well.
B
Ethanol is packaged into chylomicrons in enterocytes then released into the portal vein, which mirrors carbohydrate absorption and explains rapid uptake.
C
Ethanol must first be emulsified by gastric acid into micelles similar to dietary fats, which is why it is absorbed only in the presence of fat.
D
Ethanol is a small, water-soluble molecule that can cross cell membranes by passive diffusion without enzymatic breakdown, unlike macronutrients that are polymers requiring enzymatic digestion.
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