This detailed lesson describes the formation of dipeptides & polypeptides and the relationship between the structure and roles of proteins in living organisms. Both the engaging PowerPoint and accompanying resources have been designed to cover the second part of point 1.4.1 of the AQA A-level Biology specification.
The start of the lesson focuses on the formation of a peptide bond during a condensation reaction so that students can understand how a dipeptide is formed and therefore how a polypeptide forms when multiple reactions occur.
The main part of the lesson describes the different levels of protein structure. A step by step guide is used to demonstrate how the sequences of bases in a gene acts as a template to form a sequence of codons on a mRNA strand and how this is translated into a particular sequence of amino acids known as the primary structure. The students are then challenged to apply their understanding of this process by using three more gene sequences to work out three primary structures and recognise how different genes lead to different sequences. Moving forwards, students will learn how the order of amino acids in the primary structure determines the shape of the protein molecule, through its secondary, tertiary and quaternary structure and time is taken to consider the details of each of these. There is a particular focus on the different bonds that hold the 3D shape firmly in place and a quick quiz round then introduces the importance of this shape as exemplified by enzymes, antibodies and hormones. Students will see the differences between globular and fibrous protein and again biological examples are used to increase relevance. The lesson concludes with one final quiz round called STRUC by NUMBERS where the students have to use their understanding of the protein structures to calculate a numerical answer.
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Topic 1.4: Proteins (AQA A-level Biology)
All 8 of the lessons that are included in this lesson bundle are highly detailed and will engage and motivate the students whilst covering the content of topic 1.4 of the AQA A-level Biology specification. With proteins playing critical roles in a wide range of living organisms, a clear understanding of the structure and functions of these biological molecules is important for all of the other topics. The following specification points are covered by the lessons in this bundle: * The general structure of an amino acid * A condensation reaction between two amino acids forms a peptide bond * The formation of dipeptides and polypeptides * The role of the tertiary structure bonds in the structure of a protein * The variety of functions of proteins in living organisms * The relationship between protein structure and function * The biuret test for proteins * Enzymes lower the activation energy of the reaction it catalyses * The induced fit model of enzyme action * The specificity of enzymes * The effects of temperature, pH, enzyme and substrate concentration and inhibitors on the rate of enzyme-controlled reactions If you would like to sample the quality of lessons in this bundle, then download the dipeptides & polypeptides lesson and the biuret test lesson as these have been uploaded for free
£9.00
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Topic 1: Biological molecules (AQA A-level Biology)
The biological molecules topic is incredibly important, not just because it is found at the start of the course, but also because of its detailed content which must be well understood to promote success with the other 7 AQA A-level Biology topics. Many hours of intricate planning has gone into the design of all of the 20 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: * Monomers and polymers * Condensation and hydrolysis reactions * Common monosaccharides * Maltose, sucrose and lactose * The structure and functions of glycogen, starch and cellulose * Biochemical tests using Benedict's solution for reducing sugars and non-reducing sugars and iodine/potassium iodide for starch * The structure and properties of triglycerides and phospholipids * The emulsion test for lipids * The structure of amino acids * The formation of dipeptides and polypeptides * The levels of protein structure * The biuret test for proteins * Enzymes act as biological catalysts * The induced-fit model of enzyme action * The properties of an enzyme * The effect of temperature on the rate of an enzyme-controlled reaction * The effect of enzyme and substrate concentration on the rate of an enzyme-controlled reaction * The effect of competitive and non-competitive inhibitors on the rate of an enzyme-controlled reaction * The structure of DNA and RNA * The semi-conservative replication of DNA * ATP as the universal energy currency * The properties of water and its importance in Biology * Inorganic ions Due to the detail of each of these lessons, it is estimated that it will take in excess of 2 months of allocated teaching time to cover the content. If you would like to see the quality of the lessons, download the monomers and polymers, polysaccharides, triglycerides, dipeptides and polypeptides and inorganic ions lessons as these have been shared for free
£22.00
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