This detailed and engaging lesson describes how the roles of hydrogen, iron, sodium and phosphate ions are based on their properties. The PowerPoint and accompanying worksheet have been designed to cover point 1.8 of the AQA A-level Biology specification.
The lesson begins with a made-up round of POINTLESS where students have to use their prior knowledge of topic 1 to identify four biological molecules. All four of these molecules are connected by a phosphate group and this acts to remind students that phosphate ions are a component of both DNA and ATP. Moving forwards, the rest of the lesson explores the role of hydrogen ions in pH, iron in haemoglobin and sodium in the co-transport of glucose and amino acids. The lesson has been written so that links can be made to upcoming topics including the regulation of heart rate, transport of oxygen and selective reabsorption in the nephron of the kidney.
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Really good resource with a variety of different techniques to engage students while covering the content
Really good lesson, students found it engaging and I found it really easy to follow
Really useful resource with references to biological molecules topics. Thank you for sharing.
It relevant and straight to the point.<br />
Excellent resource with recall checks and application questions throughout. Resource allows the links between the ion and its role to be explored fully. Game format for recall checks can be adjusted but I like the pointless/competitive slides which will go down well with my students.
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