Question

Study the figure given below.

Which of the following nutrients are digested in the organs P, Q, and R?

• A. P-Lactose, Q-Starch, R-Fat
• B. P-Starch, Q-Protein, R-Lactose
• C. P-Lactose, Q-Fat, R-Starch
• D. P-Fat, Q=Starch, R-Lactose

Answer 1

The correct option is B P-Starch, Q-Protein, R-Lactose

• The digestion process of polysaccharides such as starch will begin in the mouth where it is hydrolyzed by salivary amylase. Carbohydrase enzymes break down starch into sugars.
• Protein digestion occurs in the stomach and the duodenum through the action of three main enzymes: pepsin, secreted by the stomach, and trypsin and chymotrypsin, secreted by the pancreas.
• Lactose is normally broken down by an enzyme called lactase, which is produced by cells in the lining of the small intestine.
  So, the correct answer is option B.