MEDICAL
DUODENUM JEJUNUM AND ILEUM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following molecules are absorbed by the small intestine? (select all that apply)
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Amino acids
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Simple sugar
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Cellulose
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Fatty acid
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Explanation:
Detailed explanation-1: -In the small intestines bile emulsifies fats while enzymes digest them. The intestinal cells absorb the fats. Long-chain fatty acids form a large lipoprotein structure called a chylomicron that transports fats through the lymph system.
Detailed explanation-2: -Lipid absorption involves hydrolysis of dietary fat in the lumen of the intestine followed by the uptake of hydrolyzed products by enterocytes. Lipids are re-synthesized in the endoplasmic reticulum and are either secreted with chylomicrons and high density lipoproteins or stored as cytoplasmic lipid droplets.
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