| Date | May 2021 | Marks available | 1 | Reference code | 21M.1.HL:.tz0.4 |
| Level | Higher Level | Paper | Paper 1 | Time zone | time zone 0 |
| Command term | Question number | 4 | Adapted from | N/A |
Question
Which is a definition of vital capacity?
A. Volume of air in the lungs after a maximum inhalation
B. Maximum volume of air that can be exhaled after a maximum inhalation
C. Volume of air in excess of tidal volume that can be forcibly exhaled
D. Volume of air breathed in and out in any one breath
Markscheme
B
Examiners report
High-difficulty question (48.71 % correctly answered). A was a strong distractor.
Syllabus sections
- 19N.1.SL.tz0.4: Which term is defined as the volume of air breathed in and out in one breath? A. Pulmonary...
- 16N.1.SL.tz0.6: Which combination is used to calculate vital capacity? A. Total lung capacity + expiratory...
- 17N.1.SL.tz0.4: What is pulmonary ventilation? A. Exchange of respiratory gases between the lungs and...
- 19M.1.SL.tz0.4: What is vital capacity? A. Inspiratory reserve volume plus total lung capacity B. Total...
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18N.1.SL.tz0.5:
What is residual volume?
A. Volume of air in the lungs after maximum inhalation
B. Inflow and outflow of air between the atmosphere and the lungs
C. Volume of air still contained in the lungs after maximal exhalation
D. Additional inspired air over and above tidal volume
- 17M.1.SL.tz0.6: What is vital capacity? A. Total lung capacity + tidal volume B. Tidal volume + inspiratory...
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22M.1.SL.tz0.4:
The diagram shows average respiratory volumes. What happens to the expiratory reserve volume (ERV) when an athlete begins to run?
[Source: William F. Ganong, MD: Review of Medical Physiology 19th Edition, Copyright © McGraw-Hill Education. All rights reserved.]
A. It increases until the residual volume is 0 litres.
B. It decreases.
C. There is no change.
D. It increases but is limited by residual volume.
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20N.2.SL.tz0.3c:
Explain the mechanics of inspiration for an athlete completing an aerobic fitness test.
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20N.1.SL.tz0.5:
The diagram shows various lung volumes. Which label represents tidal volume?
- 21M.1.SL.tz0.4: The graph below represents lung volume. What is labelled X? A. Tidal volume B. Vital...
- 21N.1.SL.tz0.5: What is total lung capacity? A. The volume of air in the lungs after a maximum...
