Parts and functions of respiratory and circulatory systems

P5 Science · Human System (Respiratory and Circulatory) · 206 questions · difficulty D1–D5 · Singapore syllabus-aligned

Sample questions

SAMPLE 1

How are oxygen and digested food transported to all the body cells?

SAMPLE 2

Which of the following lists the parts of the human respiratory system in the correct order as air enters the body?

SAMPLE 3

Which statement best explains how the digestive, respiratory, and circulatory systems work together to keep us alive?

A The respiratory system pumps blood, the circulatory system digests food, and the digestive system takes in oxygen.
B The circulatory system breaks down food, the digestive system takes in oxygen, and the respiratory system transports waste.
C The digestive system breaks down food, the respiratory system takes in oxygen, and the circulatory system transports these to body cells.
D The digestive system takes in oxygen, the respiratory system transports blood, and the circulatory system digests food.

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