Pancreas secretes pancreatic juice which contain certain enzyme that helps in digestion of food. Choose the correct option from the following:

The chapter states directly: 'The pancreas secretes pancreatic juice which contains enzymes like trypsin for digesting proteins and lipase for breaking down emulsified fats.' So trypsin acts on proteins, while lipase acts on fats that have already been emulsified into smaller globules by bile salts, breaking them into fatty acids and glycerol.

(A) Incorrect — it reverses the roles; trypsin does not act on fats and lipase does not act on proteins.

(C) Incorrect — trypsin does not digest fats at all; only lipase acts on fats.

(D) Incorrect — trypsin digests proteins (correct part), but lipase digests fats, not carbohydrates; carbohydrate digestion in the small intestine is carried out by intestinal enzymes acting on complex carbohydrates to give glucose, not by lipase.

Therefore option B correctly pairs each enzyme with its substrate.