Preface This series contains 5 pars which are divided into 2 videos for topic 1 - molecules, transport and health; 2 videos for topic 2 - membranes, proteins, DNA and genes expression; and biology practical. The revision will be based on the syllabus for (WBI11) IAL Edexcel Biology (2018) Unit 1 The first part contains the first half of the syllabus for topic 1 Syllabus Checklist Understand the importance of water as a solvent in transport, including its dipole nature Know the difference between monosaccharides, disaccharides and polysaccharides, including glycogen and starch (amylose and amylopectin) Be able to relate the structures of monosaccharides, disaccharides and polysaccharides to their roles in providing and storing energy Know how monosaccharides (glucose, fructose and galactose) join together to form disaccharide (maltose, sucrose and lactose) and polysaccharides (glycogen, amylose and amylopectin) through condensation reactions forming glycosidic bon...
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