1.2 Respiration and the respiratory system in humans

Practice questions on Respiration and the respiratory system in humans

• Yeast cells are used in bread making. Explain how yeast cells produce carbon dioxide when … (4 marks, Explain)
• Explain why aerobic respiration releases more energy than anaerobic respiration from the s… (4 marks, Explain)
• During a long-distance cycling race, a cyclist's muscles switch from aerobic to anaerobic … (4 marks, Explain)
• A sprinter completes a 100 m race in under 12 seconds. Describe what happens in the sprint… (4 marks, Describe)
• Explain how the structure of the alveoli makes them well suited for gas exchange. (4 marks, Explain)
• Describe the journey of an oxygen molecule from the trachea to the bloodstream, naming the… (4 marks, Describe)
• Explain why the lungs contain a large number of alveoli rather than a single large air sac… (4 marks, Explain)
• Explain how the structure of the trachea and bronchi allows them to carry out their functi… (4 marks, Explain)
• Describe how air moves from the atmosphere into the alveoli during inhalation. (4 marks, Describe)
• After a period of intense exercise, a person continues to breathe deeply and rapidly for s… (4 marks, Explain)