Foundation Science Primary 4 Systems

Which of the following describes the main function of the large intestine?

A It absorbs water and mineral salts from undigested food.
B It pushes food into the stomach.
C It absorbs digested food into the blood.
D It digests food into simpler substances.
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Worked Solution

Step 1: Food digestion ends in the small intestine. Step [2-9]: Undigested food enters the large intestine. Step [2-9]: The large intestine absorbs water and minerals before waste is expelled.

Correct answer: It absorbs water and mineral salts from undigested food.

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