This detailed lesson describes the differences between monosaccharides, disaccharides and polysaccharides. The PowerPoint and accompanying resource have been designed to cover point 1.1 (i) that’s detailed in the Edexcel A-level Biology B specification and the aim of this lesson is to provide the students with key details to prepare them for the upcoming lessons on the carbohydrate groups.
The lesson begins with a made-up round of the quiz show POINTLESS, where students have to try to identify four answers to do with carbohydrates. In doing so, they will learn or recall that these molecules are made from carbon, hydrogen and oxygen, that they are a source of energy which can sometimes be rightly or wrongly associated with obesity and that the names of the three main groups is derived from the Greek word sakkharon. A number of quick quiz rounds have been written into the lesson to introduce key terms in a fun and memorable way and the first round allows the students to meet some of common monosaccharides. Moving forwards, students will learn that a disaccharide is formed when two of these monomers are joined together and they are then challenged on their knowledge of condensation reactions which were originally encountered during the lesson on water. Students will understand how multiple reactions and multiple glycosidic bonds will result in the formation of a polysaccharide and glycogen and starch are introduced as well as amylose and amylopectin as components of this latter polymer. The final part of the lesson considers how hydrolysis reactions allow polysaccharides and disaccharides to be broken back down into monosaccharides.
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Topic 1: Biological molecules (Edexcel A-level Biology B)
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 9 Edexcel A-level Biology B topics. Many hours of intricate planning has gone into the design of all of the 18 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: * The differences between monosaccharides, disaccharides and polysaccharides * The structure of glucose and ribose * The formation of disaccharides and polysaccharides from monosaccharides * The structure of starch, glycogen and cellulose * The synthesis of a triglyceride * The differences between saturated and unsaturated lipids * The relationship between the structure of lipids and their roles * The structure and properties of phospholipids * The structure of an amino acid * The formation of polypeptides and proteins * The role of ionic, hydrogen and disulphide bonding in proteins * The levels of protein structure * The structure of collagen and haemoglobin * The structure of DNA * The semi-conservative replication of DNA * A gene is a sequence of bases on DNA that codes for an amino acid sequence * The structure of mRNA * The structure of tRNA * The process of transcription * The process of translation * Base deletions, insertions and substitutions as gene mutations * The effect of point mutations on amino acid sequences * The structure of enzymes as globular proteins * The concept of specificity and the induced-fit hypothesis * Enzymes are catalysts that reduce activation energy * Understand how temperature affects enzyme activity * Enzymes catalyse a wide range of intracellular reactions as well as extracellular ones * The importance of water for living organisms Due to the detail included in these lessons, it is estimated that it will take in excess of 2 months of allocated A-level teaching time to complete. If you would like to see the quality of the lessons then download the monosaccharides, disaccharides and polysaccharides, glucose and ribose, triglycerides, structure of DNA and transcription lessons as these have been uploaded for free.
£20.00
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Topics 1.1, 1.2 & 1.3: Carbohydrates, Lipids & Proteins (Edexcel A-level Biology B)
Carbohydrates, lipids and proteins are the key biological molecules and the specification points covering the relationship between their structures and functions are found in the very first three topics of Edexcel A-level Biology B course. With this in mind, hours of intricate planning has gone into each of the 9 lessons that are included in this bundle to ensure that students are continually engaged whilst the detailed content is covered by the variety of tasks. These tasks include exam-style questions with accompanying mark schemes so that students can assess their understanding, guided discussion periods and quiz competitions to introduce key values and terminology in a memorable way
£9.00
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