This lesson describes the structure of the human kidney, focusing on gross structures like the renal artery and vein, before considering the nephron. The detailed PowerPoint and accompanying resource have been planned to cover the content of points (4 & 5) of topic 14.1 of the CIE A-level Biology specification (for assessment in 2025 - 27). The lesson was designed at the same time as the other lessons in this topic on ultrafiltration, selective reabsorption and osmoregulation so that a common theme runs throughout and students can build their knowledge up gradually to develop a deep understanding of this organ.
Students will come to recognise the renal cortex and renal medulla as the two regions of the kidney and learn the parts of the nephron which are found in each of these regions. Time is taken to look at the vascular supply of this organ and specifically to explain how the renal artery divides into the afferent arterioles which carry blood towards the glomerulus and the efferent arterioles which carry the blood away. The main task of the lesson challenges the students to relate structure to function. Having been introduced to the names of each of the parts of the nephron, they have to use the details of the structures found at these parts to match the function. For example, they have to make the connection between the microvilli in the PCT as a sign that this part is involved in selective reabsorption.
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Topic 14: Homeostasis (CIE A-level biology)
This bundle of 8 lessons describes homeostasis in mammals and plants, explaining the content using real-world examples including osmoregulation and the control of blood glucose and the opening and closing of the stomatal apertures. The lessons have been planned at length and are filled with a wide variety of tasks which will engage and motivate the students whilst checking on their understanding of the following points from topic 14 of the CIE A-level biology specification (for assessment in 2025-27): 14.1: 1 - 10 14.2: 1 - 3 The quality of the lessons can be experienced through the download of the osmoregulation lesson as this has been shared for free.
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Topic 14.1: Homeostasis in mammals (CIE International A-level Biology)
This bundle contains 7 fully-resourced and detailed lessons that have been designed to cover the content of topic 14.1 of the CIE International A-level Biology specification which concerns homeostasis in mammals. The wide range of activities included in each lesson will engage the students whilst the detailed content is covered and the understanding and previous knowledge checks allow them to assess their progress on the current topic as well as challenging them to make links to other related topics. Most of the tasks are differentiated to allow differing abilities to access the work and be challenged. Specification points 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10 are covered by these lessons If you want to see the quality of the lessons before purchasing then the lesson on osmoregulation is a free resource to download
£15.50
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