1) The correct order of airflow is a) Bronchus, trachea, bronchiole, alveoli b) Trachea, bronchus, bronchioles, alveoli c) Bronchus, bronchiole, trachea, alveoli d) Trachea, bronchus, broccoli, alveoli 2) The trachea has rings of a) bone b) cartilage c) alveoli 3) Which of the following are NOT adaptations of alveoli a) large surface area b) short diffusion path c) good blood supply d) moist e) able to contract 4) How many bronchi are there in humans? a) one b) Two c) Three d) Four 5) Gas exchange occurs between alveoli and blood in a) arteries b) veins c) capillaries 6) Flashback question: The pulmonary artery contains  a) deoxygenated blood b) oxygenated blood 7) Which gases are exchanged in the lungs? a) oxygen and carbon dioxide b) carbon dioxide and ammonia c) oxygen only d) carbon dioxide only e) ammonia only 8) Moisture in the alveoli a) allows gases to dissolve b) raises the pH of the lungs to kill infections c) prevents damage to the lungs 9) Gases in the lungs move by a) diffusion b) osmosis c) active transport 10) Fun fact: the total surface area of alveoli is a) 0.7 m2 b) 7 m2 c) 70 m2 d) 70,000 m2 11) For a gas to move efficiently by diffusion the concentration gradient has to be  a) steep b) not steep c) level 12) True/False: oxygen moves by diffusion from high concentration to low a) true b) false 13) Carbon dioxide moves a) from the lungs to the blood b) from the blood to the lungs 14) True/false:carbon dioxide is carried in plasma and transfers in gas exchange by diffusion a) true b) false 15) True/false: the singlular of alveoli is alveolus a) true b) false

Ffynone House AQA Biology: Respiratory system

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