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Which one of the following statements is true regarding digestion and absorption of food in humans?

1. Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na⁺.
2. Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries.
3. Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like K⁺.
4. Chylomicrons are small lipoprotein particles that are transported from intestine into lymph capillaries.

Correct answer: Chylomicrons are small lipoprotein particles that are transported from intestine into lymph capillaries.

Solution

Chylomicrons are formed in intestinal cells from absorbed lipids and are too large to enter blood capillaries directly. They pass into lymph capillaries (lacteals) first, then eventually reach the bloodstream.

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