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This fully-resourced lesson is highly detailed and covers all of specification points 14.1 (h, i and j) of the CIE International A-level Biology specification which states that students should be able to describe how blood glucose concentration is regulated using negative feedback mechanisms that release insulin or glucagon and outline the role of cyclic AMP. A 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.
This lesson has been written for students studying on the CIE International A-level Biology course and ties in with the other uploaded lessons which cover the content of topic 14.1 (Homeostasis in mammals)
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