1.2 Respiration and the respiratory system in humans

Practice questions on Respiration and the respiratory system in humans

• Explain how air moves from the atmosphere into the lungs during inhalation. (4 marks, Explain)
• Describe how the structure of the alveoli makes them well suited for gas exchange. (4 marks, Describe)
• A student runs a short sprint and then continues jogging slowly for several minutes afterw… (4 marks, Describe and Explain)
• Explain why aerobic respiration releases more energy than anaerobic respiration. (4 marks, Explain)
• A baker adds yeast to a bread dough mixture and leaves it in a warm place. After one hour,… (4 marks, Explain)
• A mountaineer climbing at high altitude notices that their muscles become fatigued and pai… (4 marks, Explain)
• A scientist investigates two samples of muscle tissue. Sample A is taken from a sprinter i… (4 marks, Explain)
• Describe the path taken by an oxygen molecule from the nose to the alveoli. (4 marks, Describe)
• Explain how carbon dioxide produced in respiring muscle cells reaches the alveoli to be br… (4 marks, Explain)
• Explain why cigarette smoking increases the risk of lung infections and reduces the effici… (4 marks, Explain)