Which of the following statements is/are true regarding the function of bile juice in human digestive system ?

(A) It makes the partly digested food coming from stomach alkaline.

(B) It helps in digestion of fats.

The correct option is Both (A) and (B) are true.

Let us analyze the functions of bile juice in the human digestive system step-by-step:

1. Statement (A): It makes the partly digested food coming from stomach alkaline.

Food arriving from the stomach (chyme) is highly acidic due to the presence of hydrochloric acid (HCl). The digestive enzymes present in the pancreatic juice operating in the small intestine require an alkaline medium to function effectively. Bile juice, which is secreted by the liver and stored in the gallbladder, is alkaline in nature. When it enters the duodenum (the first part of the small intestine), it neutralizes the acidic food and creates an alkaline medium. Therefore, statement (A) is true.

2. Statement (B): It helps in digestion of fats.

Fats are present in the food in the form of large globules, making it difficult for fat-digesting enzymes (lipases) to break them down. Bile juice contains bile salts that break down these large fat globules into much smaller droplets. This process is known as emulsification of fats. Emulsification increases the surface area available for enzymatic action, enabling lipase to digest fats efficiently. Therefore, statement (B) is true.

Conclusion: Since both statements (A) and (B) describe accurate functions of bile juice in the human body, the correct choice is Both (A) and (B) are true.