Science — AI-generated practice question

Bile juice is secreted by the liver and acts on fats in the small intestine. It makes the acidic food coming from the stomach alkaline, enabling pancreatic enzymes to function. Bile salts break large fat globules into smaller ones (emulsification), which increases the efficiency of enzyme action on fats.

Source: Chapter 5, Section 5.2.4 – Nutrition in Human Beings

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Examiners look for two roles of bile for 2 marks:

1. Making the medium alkaline (neutralising acid from stomach so pancreatic enzymes can work).
2. Emulsification of fats (breaking large fat globules into smaller ones to increase surface area for enzyme action).

Don't confuse bile with a digestive enzyme — it contains no enzymes. Mentioning that bile is produced by the liver adds accuracy. Keep the answer within 50–60 words for a 2-mark question.