Designed for the new specification IGCSE edexcel course but can be used for other examination boards. Covers: (a) Characteristics of living organisms 1.1 understand how living organisms share the following characteristics: • they require nutrition • they respire • they excrete their waste • they respond to their surroundings • they move • they control their internal conditions • they reproduce • they grow and develop. Contains exam style questions

Designed for the new specification International A-level edexcel course but can be modified for other exam boards. 37 slides covering Proteins By the end of the powerpoint students would have covered: Know the structure of protein. Describe how polypeptides are made. Describe the primary, secondary, tertiary and quaternary structure and function of proteins. Know the structure of a globular protein and a fibrous protein and understand how their structures relate to their functions. Use a semi-quantitative method to estimate protein concentration using biuret reagent and colour standards. Includes practical details and a task using molecular models.

Designed for the new specification International A-level edexcel course but can be modified for other exam boards. 22 slides covering Lipids By the end of the powerpoint students would have covered: State the importance of lipids. Describe the structure of Triglycerides. Describe the differences between saturated and unsaturated fatty acids. Includes two practical/demo activities

Designed for the new specification International A-level edexcel course but can be modified for other exam boards. 41 slides covering Carbohydrates By the end of the powerpoint students would have covered: -What is the difference between monosaccharides, disaccharides and polysaccharides. -Explain how disaccharides are formed. -Be able to relate the structures of monosaccharides, disaccharides and polysaccharides to their roles. -Use a semi-quantitative method with Benedict’s reagent to estimate the concentrations of reducing sugars and with iodine solution to estimate the concentrations of starch.

Designed for the new specification International A-level edexcel course but can be modified for other exam boards. 37 slides covering The chemistry of life (water) By the end of the powerpoint students would have covered: Understand the importance of water as a solvent in transport, including its dipole nature.

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 16 slides covering trophic levels in a ecosystem. By the end of the powerpoint students would have covered: 4.7.4.1 Trophic levels 4.7.4.2 Pyramids of biomass 4.7.4.3 Transfer of biomass

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 53 slides covering Food production: By the end of the powerpoint students would have covered: 4.7.5.1 Factors affecting food security 4.7.5.2 Farming techniques 4.7.5.3 Sustainable fisheries 4.7.5.4 Role of biotechnology

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 28 slides covering variation and evolution: By the end of the powerpoint students would have covered: 4.6.2.1 Variation 4.6.2.2 Evolution

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 20 slides covering The theory of evolution: By the end of the powerpoint students would have covered: 4.6.3.1 Theory of evolution (biology only)

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 29 slides covering Inheritance: By the end of the powerpoint students would have covered: 4.6.1.6 Genetic inheritance 4.6.1.7 Inherited disorders 4.6.1.8 Sex determination

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 24 slide covering Genetic engineering By the end of the powerpoint students would have covered: 4.6.2.4 Genetic engineering

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 41 slides covering DNA: By the end of the powerpoint students would have covered: 4.6.1.4 DNA and the genome 4.6.1.5 DNA structure (biology only)

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 14 slides covering selective breeding By the end of the powerpoint students would have covered: 4.6.2.3 from the specification.

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 24 slides covering Discovery and development of drugs By the end of the powerpoint students would have covered: Students should be able to describe the process of discovery and development of potential new medicines, including preclinical and clinical testing. Traditionally drugs were extracted from plants and microorganisms. • The heart drug digitalis originates from foxgloves. • The painkiller aspirin originates from willow. • Penicillin was discovered by Alexander Fleming from the Penicillium mould. Most new drugs are synthesised by chemists in the pharmaceutical industry. However, the starting point may still be a chemical extracted from a plant. New medical drugs have to be tested and trialled before being used to check that they are safe and effective. New drugs are extensively tested for toxicity, efficacy and dose. Preclinical testing is done in a laboratory using cells, tissues and live animals. Clinical trials use healthy volunteers and patients. • Very low doses of the drug are given at the start of the clinical trial. • If the drug is found to be safe, further clinical trials are carried out to find the optimum dose for the drug. • In double blind trials, some patients are given a placebo.

Free resource that can be used as part of your powerpoint when teaching the topic. The last slide can be printed for your pupils to annotate. It’s not inteded to be a full lesson.

Free resource that can be used as part of your powerpoint when teaching the topic. The last slide can be printed for your pupils to annotate. It’s not inteded to be a full lesson.

Free resource that can be used as part of your powerpoint when teaching the topic. It’s not inteded to be a full lesson.

Free resource that can be used as part of your powerpoint when teaching the topic. The last slide can be printed for your pupils to annotate. It’s not inteded to be a full lesson.

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 26 slides covering Plant tissues, organs and systems. By the end of the powerpoint students would have covered: 4.2.3.1 Plant tissues 4.2.3.2 Plant organ system

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 20 slides covering Stem cells. By the end of the powerpoint students would have covered: A stem cell is an undifferentiated cell of an organism which is capable of giving rise to many more cells of the same type, and from which certain other cells can arise from differentiation. Students should be able to describe the function of stem cells in embryos, in adult animals and in the meristems in plants. Stem cells from human embryos can be cloned and made to differentiate into most different types of human cells. Stem cells from adult bone marrow can form many types of cells including blood cells. Meristem tissue in plants can differentiate into any type of plant cell, throughout the life of the plant. Knowledge and understanding of stem cell techniques are not required. Treatment with stem cells may be able to help conditions such as diabetes and paralysis. In therapeutic cloning an embryo is produced with the same genes as the patient. Stem cells from the embryo are not rejected by the patient’s body so they may be used for medical treatment. The use of stem cells has potential risks such as transfer of viral infection, and some people have ethical or religious objections. Stem cells from meristems in plants can be used to produce clones of plants quickly and economically. • Rare species can be cloned to protect from extinction. • Crop plants with special features such as disease resistance can be cloned to produce large numbers of identical plants for farmers.