This bundle of 18 lessons covers the majority of the content in Topic C2 (Elements, compounds and mixtures) of the OCR Gateway A GCSE Combined Science specification. The topics covered within these lessons include: Elements Electron configurations Compounds Chemical formula of ionic compounds Ionic compounds Covalent substances Simple molecules Polymers Metallic bonding Diamond and graphite Graphene and the fullerenes Changing states Pure and impure substances Distillation Filtration and crystallisation Chromatography Interpreting chromatograms Relative formula masses Empirical formula All of these lesson presentations and accompanying resources are detailed and engaging and contain regular progress checks to allow the students to constantly assess their understanding.

This bundle contains 20 lesson PowerPoints which are highly detailed to ensure that the topic 7 content is covered at the depth required for A-level Biology. The lessons have been intricately planned to contain a wide variety of tasks that will engage and motivate the students whilst covering the current material and to make links to other lessons in this topic as well as to the previous 6 topics. The tasks, which include exam-style questions with mark schemes, guided discussion time and quick quiz competitions, cover the following points in the respiration, muscles and the internal environment topic of the Edexcel International A-level Biology specification: The overall reaction of aerobic respiration The many steps of respiration are controlled and catalysed by a specific intracellular enzyme The roles of glycolysis in aerobic and anaerobic respiration The role of the link reaction and the Krebs cycle in the complete oxidation of glucose The synthesis of ATP by oxidative phosphorylation Know the way in which muscles, tendons, the skeleton and ligaments interact in movement The structure of skeletal muscle fibre The structural and physiological differences between fast and slow twitch muscle fibres The contraction of skeletal muscle in terms of the sliding filament theory The myogenic nature of cardiac muscle The coordination of the heartbeat The use of ECGs in the diagnosis of abnormal heart rhythms The calculation of cardiac output The control of heart rate and ventilation rate by the cardiovascular control centre and the ventilation centre in the medulle oblongata The role of adrenaline in the fight or flight response The meaning of negative feedback and positive feedback control The principle of negative feedback in maintaining systems within narrow limits The meaning of homeostasis and the maintenance of a dynamic equilibrium in exercise The gross and microscopic structure of the mammalian kidney Selective reabsorption in the proximal tubule The control of mammalian plasma concentration Switching genes on and off by DNA transcription factors and the roles of peptide and steroid hormones Due to the detail included in this lesson bundle, it is estimated that it will take in excess of 2 months of allocated A-level teaching time to cover the content If you would like to sample the quality of the lessons in the bundle, then download the skeletal muscle, coordination of the heartbeat, role of adrenaline and control of mammalian plasma concentration lessons as these have been uploaded for free

Hours and hours of planning have gone into each and every lesson that’s included in this bundle to ensure that the students are engaged and motivated whilst the detailed content of topic 2 of the Edexcel International A-level Biology specification is covered. Membranes, proteins, DNA and gene expression represent some of the most important structures, molecules and processes involved in this subject and a deep understanding of their role in living organisms is important for a student’s success. The 20 lesson PowerPoints and accompanying resources contain a wide range of activities which cover the following topic 2 specification points: Know the properties of gas exchange surfaces in living organisms Understand how the rate of diffusion can be calculated using Fick���s Law of Diffusion Understand how the structure of the mammalian lung is adapted for rapid gas exchange The structure and properties of cell membranes The movement of free water molecules by osmosis The movement across membranes by passive and active transport The role of channel and carrier proteins in membrane transport The basic structure of an amino acid The formation of polypeptides and proteins The structure of proteins The mechanism of action and specificity of enzymes Enzymes are biological catalysts Intracellular and extracellular enzymes The basic structure of mononucleotides The structure of DNA and RNA The process of DNA replication The nature of the genetic code A gene as a sequence of bases on DNA that codes for a sequence of amino acids The process of transcription and translation Errors in DNA replication give rise to mutations Mutations give rise to disorders but many mutations have no observable effect The meaning of key genetic terms Understanding the pattern of monohybrid inheritance Sex linkage on the X chromosome Understand how the expression of a gene mutation in people with cystic fibrosis impairs the functioning of the gaseous exchange, digestive and reproductive systems The uses and implications of genetic screening and prenatal testing Due to the detail included in all of these lessons, it is estimated that it will take in excess of 2 months of allocated A-level teaching time to complete the teaching of the bundle If you would like to sample the quality of these lessons, then download the rapid gas exchange, osmosis, DNA & RNA, genetic code, genetic terms and cystic fibrosis lessons as these have been uploaded for free.

This bundle of 19 lessons covers the majority of the content in Topic B6 (Global challenges) of the OCR Gateway A GCSE Biology specification. The topics covered within these lessons include: Investigating distribution by sampling Increasing biodiversity Loss of biodiversity Selective breeding Genetic engineering Producing a GMO Health and disease Communicable diseases Stopping the spread of diseases Plant diseases Plant defences The Human Body’s Defences Blood clotting The uses of vaccines Monoclonal antibodies Antibiotics Developing drugs Non-communicable diseases Treating cardiovascular diseases Organ transplants Stem cells in medicine All of these lesson presentations and accompanying resources are detailed and engaging and contain regular progress checks to allow the students to constantly assess their understanding.

This bundle of 18 lessons covers all of the content in Topic C3 (Chemical reactions) of the OCR Gateway A GCSE Combined Science specification. The topics covered within these lessons include: Conservation of mass Writing word and symbol equations Writing ionic equations The mole Mole calculations Calculating masses Concentrations Endothermic and exothermic reactions Bond energy calculations Making salts Reactions of acids Oxidation and reduction reactions Electrolysis Writing half equations for electrolysis Detecting gases All of these lesson presentations and accompanying resources are detailed and engaging and contain regular progress checks to allow the students to constantly assess their understanding.

This bundle of 17 lessons covers the majority of the content in Topic B6 (Global challenges) of the OCR Gateway A GCSE Combined Science specification. The topics covered within these lessons include: Investigating distribution by sampling Increasing biodiversity Loss of biodiversity Selective breeding Genetic engineering Producing a GMO Health and disease Communicable diseases Stopping the spread of diseases Plant diseases The Human Body Defences Blood clotting Using vaccines In the prevention of disease Antibiotics Developing drugs Non-communicable diseases Treating cardiovascular diseases Organ transplants Stem cells in medicine All of these lesson presentations and accompanying resources are detailed and engaging and contain regular progress checks to allow the students to constantly assess their understanding.