O Levels Biology (5090)•5090/11/O/N/24

Explanation
Bile Production and Storage Organs
Steps:
- Bile is a digestive fluid produced by the liver to break down fats.
- The liver continuously produces bile, which is then transported for storage.
- The gallbladder stores and concentrates bile until it is needed for digestion.
- In the diagram, label 1 represents the liver (produces bile), and label 4 represents the gallbladder (stores bile).
Why B is correct:
- Option B pairs the liver (1), which produces bile via hepatocytes, with the gallbladder (4), which stores it as per standard digestive anatomy.
Why the others are wrong:
- A: Part 2 likely labels the pancreas, which produces enzymes but not bile.
- C: Part 2 (pancreas) does not produce or store bile; only 4 stores it.
- D: Part 3 likely labels the stomach or small intestine, neither of which produces or stores bile.
Final answer: B
Topic: Human digestive system
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