This fully-resourced lesson looks at the blood circulation in a mammal and considers how the pulmonary circulation differs from the systemic circulation. The engaging PowerPoint and accompanying resources have been designed to cover the third part of point 3.4.1 of the AQA A-level Biology specification
The lesson begins with a focus on the double circulatory system and checks that students are clear in the understanding that the blood passes through the heart twice per cycle of the body. Beginning with the pulmonary circulation, students will recall that the pulmonary artery carries the blood from the right ventricle to the lungs. An opportunity is taken at this point to check on their knowledge of inhalation and the respiratory system as well as the gas exchange between the alveoli and the capillary bed. A quick quiz is used to introduce arterioles and students will learn that these blood vessels play a crucial role in the changes in blood pressure that prevent the capillaries from damage. When looking at the systemic circulation, time is taken to look at the coronary arteries and renal artery as students have to be aware of these vessels in addition to the ones associated with the heart. In the final part of the lesson, students are challenged to explain how the structure of the heart generates a higher pressure in the systemic circulation and then to explain why the differing pressures are necessary.
This lesson has been written to tie in with the other uploaded lessons from topic 3.4.1 (mass transport in animals)
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Topic 3: Organisms exchange substances with their environment (AQA A-level Biology)
This lesson bundle contains 17 detailed and fully-resourced lessons which cover the following specification points in topic 3 of the AQA A-level Biology specification: Topic 3.1 * The relationship between the size of an organism or structure and its surface area to volume ratio * The development of systems in larger organisms as adaptations that facilitate exchange as this ratio reduces Topic 3.2 * Adaptations of gas exchange surfaces as shown by gas exchange in single-celled organisms, insects, bony fish and the leaves of dicotyledonous plants * The gross structure of the human gas exchange system * The essential features of the alveolar epithelium as a surface over which gas exchange takes place * The mechanism of breathing to include the role of the diaphragm and the intercostal muscles Topic 3.3 * During digestion, large molecules are hydrolysed to smaller molecules * Digestion in mammals by amylases, disaccharidases, lipase, endopeptidases, exopeptidases and dipeptidases * Mechanisms for the absorption of the products of digestion by cells lining the ileum of mammals Topic 3.4.1 * The structure and role of haemoglobin in the loading, transport and unloading of oxygen * The effects of carbon dioxide concentration on the dissociation of oxyhaemoglobin * The general pattern of blood circulation in a mammal * The gross structure of the human heart * Pressure and volume changes and valve movements during the cardiac cycle * The structure of the arteries, arterioles and veins * The formation of tissue fluid and its return to the circulatory system Topic 3.4.2 * Xylem as the tissue that transports water * The cohesion-tension theory of water transport * Phloem as the tissue that transports organic substances in plants * The mass flow hypothesis for the mechanism of translocation in plants If you would like to sample the quality of the lessons included in this bundle, then download the following lessons which have been uploaded for free Alveolar epithelium Absorption in the ileum Arteries, arterioles and veins Formation of tissue fluid Translocation
£24.00
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Mass transport (AQA A-level Biology)
This fully-resourced bundle includes 10 detailed PowerPoint lessons and their accompanying worksheets which cover the content as set out in topic 3.4 (Mass transport) of the AQA A-level Biology specification. This topic includes sections on mass transport in animals (3.4.1) and mass transport in plants (3.4.2). The lessons have been designed to include a wide range of tasks to maintain motivation whilst ensuring that the understanding of the content is constantly checked and links are made to other topics. The specification points in topic 3.4 which are covered in these lessons are: * The haemoglobins * The role of haemoglobin in the transport of oxygen * The oxyhaemoglobin dissociation curve * The Bohr effect * The general pattern of blood circulation in a mammal * The gross structure of the human heart * The valve movements in the cardiac cycle * The structure of the blood vessels * The formation of tissue fluid * The transport of water in the xylem * The structure of the phloem tissue * Translocation by mass flow If you would like to see the quality of these lessons, download the arteries, tissue fluid and translocation lessons as these have been uploaded for free
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Topic 3.4.1: Mass transport in animals (AQA 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 3.4.1 (Mass transport in animals) of the AQA A-Level Biology specification. The specification points that are covered within these lessons include: * Haemoglobin and the role in the transport of oxygen * The effects of carbon dioxide concentration on the dissociation of oxyhaemoglobin * The general pattern of blood circulation in a mammal * The gross structure of the human heart * The calculation of cardiac output * Pressure and volume changes and valve movements during the cardiac cycle * The structure and function of arteries, arterioles and veins * The formation of tissue fluid 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 blood vessels and the formation of tissue fluid lessons as these are free
£8.00
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Not only does this PowerPoint have all the core detail required by AQA specification, it has loads of little quizzes, puzzles and brain teasers. It's all the things you want to include your lesson, but just don't have the time to do! Thank you as always GJHEducation!
Really good lesson, students enjoyed the activities and I found the lesson engaging and easy to follow.
Lovely resources. Well presented. Thank you for sharing.
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