This lesson describes the homeostatic control of blood glucose concentration using negative feedback mechanisms. The PowerPoint and accompanying resources have been planned to cover the content of points (9 and 10) of topic 14.1 of the CIE A-level Biology specification (for assessment in 2025-27) and therefore also explain how the binding of glucagon and the formation of a second messenger is cell signalling.
The wide range of activities will maintain motivation and engagement whilst the content is covered in detail to enable the students to explain how the receptors in the pancreas detect the concentration change and how the hormones attaching to receptor sites on the liver triggers a series of events in this effector organ. This is a topic which has a huge amount of difficult terminology so time is taken to look at all of the key words, especially those which begin with the letter G so students are able to use them accurately in the correct context. The final part of the lesson looks at the role of the secondary messenger, cyclic AMP, and describes how this is involved when glucagon and adrenaline attach to receptors on the liver. The action of adrenaline is also considered and linked to the breakdown of glycogen to glucose during glycogenolysis.
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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.
£16.00
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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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