Which of the given enzymes is responsible for the digestion of milk protein?

Correct Answer: D

Rationale: Rennin is responsible for the digestion of milk protein. Rennin is present in the human body in its inactive form called prorenin. When we consume milk, it reacts with the hydrochloric acid present in the stomach. Hydrochloric acid activates the inert prorenin and converts it into active Rennin.

Correct Answer: C

Rationale: Assimilation involves using absorbed nutrients to synthesize cellular components; building proteins from amino acids is a prime example.

Correct Answer: A

Rationale: Amino acids and glucose enter the blood capillaries, while fatty acids and glycerol are absorbed into the lacteals.

Correct Answer: A

Rationale: Structure X (epithelial cells) absorbs amino acids, while structure Y (goblet cells) secretes mucus.

Correct Answer: D

Rationale: Peristalsis refers to the rhythmic contractions of smooth muscle that propel food and chyme through the digestive tract.