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WorksheetsHuman Respiratory System
Total questions: 10
Worksheet time: 5mins
1) Humans breathe through which of the following systems?
Cardiovascular System
Nervous System
Respiratory System
Digestive System
Which of the following substances do we breathe in?
Carbon Dioxide
Oxygen
Hydrogen
Nitrogen
Which specific complex molecule do we get from eating?
Glucose
RNA
Dihydrogen Monoxide
DNA
Which of the following expands our lungs during the breathing process?
Thyroid
Diaphragm
Pharynx
Trachea
What are the tiny air sacks at the ends of the bronchi called?
Fettuccine
Rigatoni
Ravioli
Alveoli
Where is oxygen stored in our bodies?
Brain
White Blood Cells
Red Blood Cells
Thyroid
Which of the following substances do we breathe out?
Oxygen
Water
Nitrogen
Carbon Dioxide
True or False: Our nose helps cool down air prior to getting to our lungs.
True
False
What happens when we exercise?
It feels easier to breathe because we are getting stronger
Our lungs will try to breathe harder and faster to get more oxygen
We use up all the carbon dioxide in our red blood cells
Our muscles store energy
True or False: We couldn't talk without air.
True
False
