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Digestion of Fats
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Digestion of Fats
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5. Lipids / Digestion of Fats / Problem 6
Problem 6
A meal rich in medium-chain triglycerides (MCTs) would most likely lead to which of the following absorption patterns?
A
Preferential incorporation into hepatic VLDL particles within the intestinal lumen prior to any enterocyte interaction, and immediate secretion into systemic veins bypassing the lymphatics.
B
Extensive formation of chylomicrons loaded with intact medium-chain triglyceride molecules that enter lacteals and the lymphatic system because medium chains cannot diffuse into portal blood due to their excessive hydrophobicity.
C
Rapid hydrolysis and absorption of the resulting short- to medium-chain fatty acids directly into portal blood capillaries, with minimal chylomicron formation and lymphatic transport.
D
Complete failure of absorption because medium-chain fatty acids require bile salts to form very large micelles that can be endocytosed by hepatocytes in the intestinal lumen itself.
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