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

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About 60% of starch is hydrolysed by salivary amylase in our mouth.

Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+.

Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries.

answer is C.

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Detailed Solution

About 30% of starch is hydrolysed by salivary amylase into a disaccharide - maltose. Oxyntic or parietal cells, present in the gastric glands of stomach, secrete HCl and intrinsic factor (factor essential of absorption of vitamin B12). Chylomicrons are small protein coated fat globules, transported into the lymph vessels (lacteals) in the villi.

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