This detailed lesson uses haemoglobin and collagen to describe the relationship between the structure and functions of globular and fibrous proteins. The engaging PowerPoint and accompanying worksheet have been primarily designed to cover specification point 2.3 © of the CIE International A-level Biology course but due to the detailed coverage of haemoglobin, this resource could also be used when teaching a lesson on the role of this protein in topic 8.
The first part of the lesson looks at the structure of haemoglobin, and describes how the presence of an iron-containing haem group on the outside of the 4 polypeptide chains explains its ability to form oxyhaemoglobin. Moving forwards, the importance of the solubility of this protein is considered and related to the direction that the hydrophobic R groups point. At this point of the lesson, the students are challenged to construct a comparison table which can be filled in as the lesson progresses and as they are given more details of collagen. The section of the lesson concerning collagen begins with the introduction of its function in the artery wall so that students can recognise how fibrous proteins have roles associated with mechanical strength. Time is taken to discuss their solubility as well as the presence of repetitive amino acid sequences. The remainder of the lesson considers four more proteins and the final task challenges the students to use their completed table to write a summary passage comparing globular and fibrous proteins.
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Topics 1 & 2: Cell structure & Biological molecules (CIE A-level Biology)
It's no coincidence that cell structure and biological molecules find themselves as topics 1 and 2 of the CIE A-level Biology course, because a clear understanding of their content is absolutely critical to promote success with the 17 topics that follow. Hours and hours of intricate planning has gone into the 18 lessons included in this bundle to ensure that the detailed content is relevant and can be understood and that links are made to related sections of topics 3 - 19. The lesson PowerPoints and accompanying resources contain a wide range of activities that include: * differentiated exam-style questions with clear mark schemes * directed discussion points * quiz competitions to introduce key terms and values * current understanding and prior knowledge checks Due to the detail included in these lessons, it is estimated that it will take in excess of 2 months of allocated teaching time to cover the content of the resources A number of the resources have been shared for free so these can be downloaded in order to sample the quality of the lessons
£20.00
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Topic 2: Biological molecules (CIE International A-level Biology)
The biological molecules topic is incredibly important, not just because it is found near to the start of the course, but also because of its detailed content which must be well understood to promote success with the other 18 CIE International A-level Biology topics. Many hours of intricate planning have gone into the design of all of the 11 lessons that are included in this bundle to ensure that the content is covered in detail, understanding is constantly checked and misconceptions addressed and that engagement is high. This is achieved through the wide variety of tasks in the PowerPoints and accompanying worksheets which include exam-style questions with clear answers, discussion points, differentiated tasks and quick quiz competitions. The following specification points are covered by the lessons within this bundle: * Tests for reducing and non-reducing sugars * The iodine test for starch * The emulsion test for lipids * The biuret test for proteins * The ring forms of alpha and beta glucose * The meaning of the terms monomer, polymer, macromolecule, monosaccharide, disaccharide and polysaccharide * The formation of a glycosidic bond by a condensation reaction * The breakage of glycosidic bonds by hydrolysis reactions * The relationship between the molecular structure and functions of a triglyceride * The relationship between the structure and functions of a phospholipid * The structure of an amino acid and the formation and breakage of a peptide bond * The meaning of the different protein structures and the types of bonding that hold these molecules in shape * The molecular structure of haemoglobin and collagen as examples of globular and fibrous proteins * The relationship between the properties and roles of water in living organisms The lesson on the biuret test for proteins and the emulsion test for lipids also contains a section which can be used for the revision of topics 2.2 and 2.3 Due to the detail of each of these lessons, it is estimated that it will take in excess of 4 weeks of allocated teaching time to cover the content. If you would like to see the quality of the lessons, download the alpha and beta glucose, phospholipids and haemoglobin and collagen lessons as these have been shared for free
£15.00
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Topic 2.3: Proteins and water (CIE A-level Biology)
This bundle contains 4 detailed and engaging lessons that cover the content in topic 2.3 of the CIE International A-level Biology course. Due to the importance of proteins and water in living organisms, this mini-topic is fundamental to the whole course and planning has taken account of this with extra time given to key details that must be understood. The PowerPoints and accompanying resources contain a wide range of activities which include discussion points, current understanding and prior knowledge checks and quiz competitions. The following specification points are covered in this bundle: * The structure of an amino acid and the formation and breakage of a peptide bond * The meanings of primary, secondary, tertiary and quaternary structure * The types of bonding that hold protein molecules in shape * The molecular structure of haemoglobin as an example of a globular protein * Collagen as an example of a fibrous protein * The relationship between the properties of water and its roles in living organisms If you would like to sample the quality of the lessons, download the haemoglobin and collagen lesson as this has been shared for free
£4.50
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Another excellent resource to keep the students engaged during online lessons. Thanks for sharing it.
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