ZIMSEC A-Level Biology
8.11.1Mammalian circulatory system
Mammalian circulatory system in ZIMSEC A-Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic81 practice questions4 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 8.11.1.1Identify arteries, veins and capillaries.
- 8.11.1.2Explain the role of haemoglobin in transporting oxygen and carbon dioxide, using oxygen dissociation curves.
- 8.11.1.3Explain the Bohr effect.
- 8.11.1.4Explain the significance of the different oxygen affinities of haemoglobin and myoglobin and of maternal and fetal haemoglobin.
- 8.11.1.5Describe the cardiac cycle and explain how heart action is initiated and controlled (myogenic control, pacemaker).
- 8.11.1.6Explain systolic blood pressure, diastolic blood pressure and hypertension.
- 8.11.1.7Discuss the long-term consequences of exercise on the cardiovascular system.
Lessons
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Blood pressure, hypertension and the effects of exercise
35 min
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The mammalian circulation, blood vessels and tissue fluid
40 min
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The mammalian heart and the cardiac cycle
45 min
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Transport of oxygen and carbon dioxide in the blood
40 min
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Sample question
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