| Date | May 2012 | Marks available | 1 | Reference code | 12M.2.SL.TZ2.4 |
| Level | Standard level | Paper | Paper 2 | Time zone | Time zone 2 |
| Command term | State | Question number | 4 | Adapted from | N/A |
Question
Blood transports molecules throughout the body. State where the blood absorbs oxygen.
Markscheme
alveoli / lungs
Examiners report
Most of the candidates obtained the mark for this answer.
Syllabus sections
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- 17M.2.SL.TZ2.1c.i: State the time when the point of fatigue occurred in the Epi–exercise group.
- 17M.2.SL.TZ2.1a.ii: Outline the trends in capillary density in the results of this experiment.
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- 16M.1.HL.TZ0.36: Which is a valid comparison between arteries and veins?
- 16M.1.HL.TZ0.35: Which discovery was an indication that the heart pumps blood to the body through...
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- 15M.1.HL.TZ1.22: What is a feature of the human circulatory system?A. The wall of the right ventricle of the...
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- 15M.2.SL.TZ2.7b: Describe the action of the heart in pumping blood.
- 15M.2.SL.TZ2.7a: Draw a labelled diagram of the human heart showing the attached blood vessels.
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- 15M.2.HL.TZ2.6b: Describe the action of the heart in pumping blood.
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- 15N.1.SL.TZ0.25: What causes heart ventricles to fill with blood? I. Atrial contraction II. Closing of...
- 15N.1.SL.TZ0.30: When the left ventricle is relaxed, what is the state of the valves?
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- 11M.1.SL.TZ1.26: Is the blood in the aorta, left ventricle and pulmonary artery oxygenated or deoxygenated?
- 11M.1.SL.TZ2.27: Which vessel directly supplies the heart muscle with blood? A. The aorta B. The pulmonary...
- 11M.3.SL.TZ2.4a (i): State which activity reduces backflow speed in relation to the control.
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- 11M.3.SL.TZ2.4c: Discuss the benefits of exercising to promote high backflow speed.
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- 12M.2.HL.TZ1.3a: Outline the mechanisms involved in the control of heartbeat.
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- 12M.2.HL.TZ2.3a (ii): Blood transports molecules throughout the body. State where the blood absorbs carbon dioxide.
- 12M.2.HL.TZ2.3c: Explain how the structure of capillaries relates to their functions.
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- 10M.2.SL.TZ1.6b: Explain how the structure of an artery allows it to carry out its function efficiently.
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- 11N.2.SL.TZ0.2b (i): Explain how the structure of veins is adapted to their function.
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- 12N.2.SL.TZ0.7b: Outline the control of the heartbeat by the nervous and endocrine systems.
- 10N.2.SL.TZ0.6a: State four molecules transported by the blood.
- 10N.2.SL.TZ0.6b: Outline the control of the heartbeat.
