Standard Science Primary 5 Systems

Which of the following describes the function of the human heart?

A It breaks down food into simpler substances.
B It takes in oxygen from the surrounding air.
C It pumps blood containing oxygen and digested food to all parts of the body.
D It absorbs water from undigested food.
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Worked Solution

Step 1: The heart is a muscular organ in the circulatory system. Step 2: Its primary role is to pump blood through blood vessels. Step 3: This blood transports essential substances like oxygen and digested food to all cells.

Correct answer: It pumps blood containing oxygen and digested food to all parts of the body.

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