This fully-resourced lesson looks at the external and internal structure of the mammalian heart and explains how the differences in the thickness of the chamber walls is related to function. The engaging and detailed PowerPoint and accompanying resources have been designed to cover points 8.2 (a) and (b) of the CIE International A-level Biology specification
As this topic was covered at GCSE, the lesson has been planned to build on this prior knowledge whilst adding the key details which will enable students to provide A-level standard answers. The primary focus is the identification of the different structures of the heart but it also challenges their ability to recognise the important relationship to function. As detailed in specification point (b), time is taken to ensure that students can explain why the atrial walls are thinner than the ventricle walls and why the right ventricle has a thinner wall than the left ventricle. Opportunities are taken throughout the lesson to link this topic to the others found in topics 8.1 and 8.2 including those which have already been covered like circulatory systems as well as those which are upcoming such as the cardiac cycle. There is also an application question where students have to explain why a hole in the ventricular septum would need to be repaired if it doesn’t naturally close over time.
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Topics 7 & 8: Transport in plants & mammals (CIE A-level Biology)
This bundle contains 11 fully-resourced lessons which will engage and motivate the students whilst covering the following specification points in topics 7 and 8 of the CIE A-level Biology specification: TOPIC 7 * The structure of xylem vessel elements, phloem sieve tube elements and companion cells * The relationship between the structure and function of xylem vessel elements, phloem sieve tube elements and companion cells * Explain how hydrogen bonding of water molecules is involved with the movement in the xylem by cohesion-tension in transpiration pull and adhesion to cell walls * The pathways and mechanisms by which water and mineral ions are transported from the soil to the xylem and from roots to leaves * Assimilates move between sources and sinks between phloem sieve tubes * The mechanism by which sucrose is loaded into the phloem * The mass flow of phloem sap down a hydrostatic pressure gradient TOPIC 8 * The double, closed circulatory system of a mammal * The relationship between the structure and function of arteries, veins and capillaries * The role of haemoglobin in carrying oxygen and carbon dioxide * The significance of the oxygen dissociation curve of adult haemoglobin at different carbon dioxide concentrations * The external and internal structure of the heart * The cardiac cycle * The role of the SAN, AVN and Purkyne tissue in the initiation and conduction of the heart action The lesson PowerPoints and accompanying resources contain a wide range of tasks which include exam-style questions with mark schemes, discussion points and quiz competitions that will check on current understanding as well as making links to previously covered topics.
£15.00
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Topic 8: Transport in mammals (CIE International A-level Biology)
Each of the 7 lessons in this bundle are fully-resourced and have been designed to cover the content as detailed in topic 8 (Transport in mammals) of the CIE International A-Level Biology specification. The specification points that are covered within these lessons include: * The double, closed circulatory system of a mammal * The relationship between the structure and function of arteries, veins and capillaries * The role of haemoglobin in carrying oxygen and carbon dioxide * The significance of the oxygen dissociation curve at different carbon dioxide concentrations (Bohr effect) * The external and internal structure of the mammalian heart * The cardiac cycle, including the blood pressure changes during systole and diastole * The initiation and control of heart action The lessons have been written to include a wide range of activities and numerous understanding and prior knowledge checks so students can assess their progress against the current topic as well as be challenged to make links to other topics within this topic and earlier topics If you would like to see the quality of the lessons, download the arteries, veins and capillaries lesson as this is free
£9.00
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Topic 8.2: The heart (CIE International A-level Biology)
Each of the 3 lessons in this bundle are fully-resourced and have been designed to cover the content as detailed in topic 8.2 (The heart) of the CIE International A-Level Biology specification. The specification points that are covered within these lessons include: * The external and internal structure of the mammalian heart * The differences in the thickness of the walls of the chambers * The cardiac cycle and the blood pressure changes during systole and diastole * The initiation and control of heart action The lessons have been written to include a wide range of activities and numerous understanding and prior knowledge checks so students can assess their progress against the current topic as well as be challenged to make links to other topics within this topic and earlier topics
£5.00
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