Digestion of food

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Multiple Choice

Which of the following is true about digestion and absorption of food?

  1. Trypsin, chymotrypsin and carboxypeptidase are brush border enymes
  2. The chemical process of digestion is initiated in the oral cavity. A bout $60\%$ starch is hydrolysed here by salivary amylase to form maltose
  3. Rennin is proteolytic enzyme found in grastic juice of infants. Small amounts of lipases are also secreted by the gastric glands
  4. If breast feeding is replaced by less nutritive food low in proteins and calories, the infants below the age of one year will suffer from kwashiorkar
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