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Is breathing the same as respiration?
No - respiration is a chemical reaction
Do the lungs have a large or small surface area?
Large!!
Which process releases energy faster - respiration or combustion?
Combustion
Which waste products are released in aerobic respiration?
Carbon dioxide and water
Why does the trachea have rings of cartilage?
To hold it open
The two main branches of the airway that each go into a lung are called...
Bronchi
Name of the tube that carries air to the lungs?
Trachea
Name of the air sacs where gas exchange happens?
Alveoli
Which two muscles help us to breathe?
Intercostals and diaphragm
Which part protects the lungs?
Ribs
Why are the lungs pink?
They have a good blood supply
What is released in respiration that is essential for all living things?
Energy
Name of the gas needed for aerobic respiration?
Oxygen


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