2.47 Ventilation
Exam question
Mark points shown after marking
What happens to the diaphragm during inhalation?
(1)Total for this question: 1 mark
2(g) GAS EXCHANGE · EXAM QUESTIONS
2.47 Ventilation
37 exam-style questions. Write your answer, check it against the mark scheme and tick the points you earned. Your marks stay on this device. Your writing is not saved.
Ratings are saved in this browser on this device, under a KS4 key kept separate from International A Level recall. Written answers are temporary and cleared when you leave the page. Use Reset to clear the ratings on this device.
2.47 Ventilation
Exam question
Mark points shown after marking
What happens to the pressure in the thorax when its volume increases?
(1)Total for this question: 1 mark
2.47 Ventilation
Exam question
Mark points shown after marking
Which muscles contract to raise the ribs during inhalation?
(1)Total for this question: 1 mark
2.47 Ventilation
Exam question
Mark points shown after marking
Describe how air is drawn into the lungs.
(4)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 4 marks
2.47 Ventilation
Exam question
Mark points shown after marking
Describe how air is forced out of the lungs during exhalation at rest.
(4)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 4 marks
2.47 Ventilation
Exam question
Mark points shown after marking
Explain how forced exhalation, such as blowing up a balloon, differs from quiet exhalation.
(3)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 3 marks
2.47 Ventilation
Exam question
Mark points shown after marking
Explain why air moves into the lungs when the thorax volume increases.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
2.47 Ventilation
Exam question
Mark points shown after marking
Explain why ventilation is needed for gas exchange in the alveoli.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
2.47 Ventilation
Exam question
Mark points shown after marking
Compare the position of the diaphragm during inhalation and exhalation.
(2)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 2 marks
2.47 Ventilation
Exam question
Mark points shown after marking
A person takes 15 breaths per minute. Each breath has a volume of 0.5 dm³. Calculate the volume of air breathed per minute.
(2)dm³/minTotal for this question: 2 marks
2.47 Ventilation
Exam question
Mark points shown after marking
During exercise a person breathes 30 times per minute with a volume of 2.2 dm³ per breath. Calculate the volume of air breathed per minute.
(2)dm³/minTotal for this question: 2 marks
2.47 Ventilation
Exam question
Mark points shown after marking
A student counts 9 breaths in 30 seconds. Calculate the breathing rate in breaths per minute.
(2)breaths per minuteTotal for this question: 2 marks
2.47 Ventilation
Exam question
Mark points shown after marking
A resting student counts 4 breaths in 15 seconds. Calculate the breathing rate in breaths per minute.
(2)breaths per minuteTotal for this question: 2 marks
2.47 Ventilation
Exam question
Mark points shown after marking
Breathing during exercise on a bicycle Power output / W Breaths per minute Volume per breath / dm³ 0 14 0.5 50 18 1.1 100 24 1.8 150 31 2.3 200 38 2.4 Illustrative data, not from a real investigation. The table shows breathing rate and depth during exercise. Describe the changes as exercise intensity increases.
(3)Write your answer, then press Show model answer and tick each mark point your answer makes. Your answer is not saved.
Total for this question: 3 marks
2.47 Ventilation
Exam question
Mark points shown after marking
Breathing during exercise on a bicycle Power output / W Breaths per minute Volume per breath / dm³ 0 14 0.5 50 18 1.1 100 24 1.8 150 31 2.3 200 38 2.4 Illustrative data, not from a real investigation. Using the table, calculate the volume of air breathed per minute at 150 W.
(2)dm³/minTotal for this question: 2 marks