O-LevelBiologyHuman Nutrition5090/12 · Oct/Nov 2017 · Q81 Mark

Blood from the ileum is carried in the hepatic portal vein to the liver. Why is this an advantage to the body?

AAmino acids can be converted to urea before they enter the general circulation.

BExcess glucose can be converted to glycogen for storage and not excreted.

CIt ensures that fat products pass through the liver before they reach the heart.

DToxic materials can be destroyed before they reach any body cells.

✓ Correct answer

B: Excess glucose can be converted to glycogen for storage and not excreted.

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Topic: Human Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2017 Paper 1 Variant 2, question 8.

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