1) Based on this diagram, what is shown by F? a) Trachea b) Bronchus c) Bronchiole d) Alveolus 2) What is the process shown by this diagram? a) Inhalation (breathing in) b) Exhalation (breathing out) 3) At which part in the lungs that the diffusion of oxygen and carbon dioxide occur? a) Trachea b) Bronchus c) Bronchiole d) Alveoli (alveolus) 4) Why do body cells need oxygen? a) For respiration b) For excretion c) For digestion d) For blood circulation 5) Complete the equation of cellular respiration.  a) carbon dioxide; oxygen b) oxygen; carbon dioxide c) carbon monoxide; carbon dioxide d) oxygen; carbon monoxide 6) The diagram shows the diffusion of gas in the lungs. Label gas A and B correctly. a) A= oxygen; B=carbon dioxide b) A=carbon dioxide; B=oxygen 7) The diagram shows the diffusion of gas between cells and blood capillary. At which part has the highest concentration of carbon dioxide? a) A b) B c) C d) D 8) Haemoglobin + ___________ --> Carboxyhaemoglobin. Fill in the blank. a) carbon dioxide b) carbon monoxide 9) Which substance can cause lung cancer? a) Carcinogen b) Nicotine c) Oxygen d) Carbon dioxide 10) Which substance can reduce the transportation of oxygen in the blood? a) Carbon dioxide b) Carbon monoxide c) Nitrogen d) Argon 11) The person who does not smoke but inhale smoke from cigarette indirectly is called as a) Active smoker b) Passive smoker 12) Which substance in cigarettes can blacken the lungs? a) Nicotine b) Tar c) Acetone d) Cadmium 13) The diagram shows the damaged alveoli in lungs caused by harmful substances in the air. What is the name of this lung disease?  a) Athma b) Bronchitis c) Emphysema 14) The diagram shows the inflammation of the bronchioles. What is the name of this lung disease? a) Athma b) Bronchitis c) Emphysema 15) The diagram shows the smoking experiment. The white wool represents the lungs. What will happen to the white wool after the experiment? a) Change colour to red b) Change colour to yellowish brown c) Change colour to green

HUMAN RESPIRATORY SYSTEM

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