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WorksheetsGrade 6 biology
Total questions: 11
Worksheet time: 5mins
What is the main function of the respiratory system?
to break food down
supply the blood with oxygen
circulate the blood
controlling the body
How does the respiratory system deliver oxygen to different parts of the body?
breathing
circulation
inhale carbon dioxide
exhale oxygen
Which part of the body is not used for the respiratory system to work?
mouth
nose
small intestine
diaphragm
What is the diaphragm's main function?
pump blood into the lungs
pump carbon dioxide out of the lungs and pull oxygen into the lungs
pump oxygen out of the lungs and pull carbon dioxide into the lungs
pumping blood
Inside each of your lungs there are tubes called bronchi. These branch into even smaller tubes much like the branches of a tree. What are at the ends of these tubes?
alveoli
diaphragms
cells
lobus
