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Answer each question and check where every mark went.
- 1
Question 1
The human gas exchange system includes a lining of goblet cells and ciliated cells in the airways, and millions of alveoli where gas exchange with the blood takes place.
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10 marksOpen › - 2
Question 2
A student investigates the effect of exercise on breathing rate and depth. She records tidal volume and breaths per minute at rest, during moderate exercise, and during vigorous exercise. Her results are summarised in the table below.
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9 marksOpen › - 3
Question 3
The table below shows the composition of inspired air, alveolar air, and blood in the pulmonary vein leaving the lungs.
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9 marksOpen › - 4
Question 4
Inspiration and expiration in a human are brought about by the coordinated action of the diaphragm and the intercostal muscles.
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10 marksOpen ›