Designed for the new specification AQA GCSE course but can be modified for other exam boards. 17 slides covering Cell division (chromosomes, mitosis and the cell cycle) By the end of the powerpoint students would have covered: 4.1.2.1 Chromosomes The nucleus of a cell contains chromosomes made of DNA molecules. Each chromosome carries a large number of genes. In body cells the chromosomes are normally found in pairs. **4.1.2.2 Mitosis and the cell cycle ** Cells divide in a series of stages called the cell cycle. Students should be able to describe the stages of the cell cycle, including mitosis. During the cell cycle the genetic material is doubled and then divided into two identical cells. Before a cell can divide it needs to grow and increase the number of sub-cellular structures such as ribosomes and mitochondria. The DNA replicates to form two copies of each chromosome. In mitosis one set of chromosomes is pulled to each end of the cell and the nucleus divides. Finally the cytoplasm and cell membranes divide to form two identical cells. Students need to understand the three overall stages of the cell cycle but do not need to know the different phases of the mitosis stage. Cell division by mitosis is important in the growth and development of multicellular organisms. Students should be able to recognise and describe situations in given contexts where mitosis is occurring.

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 22 slides covering Microscopy: By the end of the powerpoint students would have covered (includes a required practical): Students should be able to: understand how microscopy techniques have developed over time explain how electron microscopy has increased understanding of sub-cellular structures. Limited to the differences in magnification and resolution. An electron microscope has much higher magnification and resolving power than a light microscope. This means that it can be used to study cells in much finer detail. This has enabled biologists to see and understand many more sub-cellular structures. Students should be able to carry out calculations involving magnification, real size and image size using the formula: magnification = size of image size of real object Students should be able to express answers in standard form if appropriate. Required practical activity 1: use a light microscope to observe, draw and label a selection of plant and animal cells. A magnification scale must be included.

Designed for the new specification International A-level edexcel course but can be modified for other exam boards. 24 slides coveringThe Structure of Neurones By the end of the powerpoint students would have covered: 8.7 understand how the effects of drugs can be caused by their influence on nerve impulse transmission, illustrated by nicotine, lidocaine and cobra venom alpha toxin, the use of L-DOPA in the treatment of Parkinson’s disease and the action of MDMA (ecstasy) Powerpoint contains exam questions.

New specification-46 Key recall questions (no answers) on topic 1-Nature and variety of living organism. Great for students to use to make flash cards.

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. 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 to use as a revision tool to help students summarise content from Organisation. Alternatively can be given as a homework task. Resource contains 3 revision mats.

A great simple resource to teach lipids, powerpoint contains exam questions and when I taught this lesson I used slides 6 and 12 for group activities. www.tes.com/teaching-resources/shop/mr_science

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE( covers spec point 4.7.2 ) course but can be modified for other exam boards. 27 slides covering Levels of organisation. By the end of the powerpoint students would have covered: 4.7.2.1 Levels of organisation

Designed to use as a revision tool to help students summarise content from Cell biology. Alternatively can be given as a homework task. Contains 2 revision mats Print off in A3. www.tes.com/teaching-resources/shop/mr_science

Pupils label the internal and external structure of the heart. There is also a word fill task at the bottom of the sheet. This worksheet can be used for pupils on the GCSE/IGCSE course.It can also be used to help A-level pupils review prior learning. Worksheet comes in PDF form.

Worksheet with model answers to go through the key structures. Sutiable for the IGCSE/GCSE course. Print on A3 and colour for best results. No Answers included

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: (d) Cloning 5.17B describe the process of micropropagation (tissue culture) in which explants are grown in vitro 5.18B understand how micropropagation can be used to produce commercial quantities of genetically identical plants with desirable characteristics 5.19B describe the stages in the production of cloned mammals involving the introduction of a diploid nucleus from a mature cell into an enucleated egg cell, illustrated by Dolly the sheep 5.20B understand how cloned transgenic animals can be used to produce human proteins

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.

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 IGCSE Edexcel course but can be used for other examination boards. Covers: (b) Feeding relationships 4.6  understand the names given to different trophic levels, including producers, primary, secondary and tertiary consumers and decomposers 4.7  understand the concepts of food chains, food webs, pyramids of number, pyramids of biomass and pyramids of energy transfer 4.8  understand the transfer of substances and energy along a food chain 4.9  understand why only about 10% of energy is transferred from one trophic level to the next

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: The organism in the environment 4.1 understand the terms population, community, habitat and ecosystem 4.2 practical: investigate the population size of an organism in two different areas using quadrats 4.3B understand the term biodiversity 4.4B practical: investigate the distribution of organisms in their habitats and measure biodiversity using quadrats 4.5 understand how abiotic and biotic factors affect the population size and distribution of organisms

New specification-64 Key recall questions (no answers) on topic 3- Reproduction and inheritance. Great for students to use to make flash cards.

New specification-33 Key recall questions (no answers) on Topic 4- Ecology and the environment. Great for students to use to make flash cards.

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 50 slides covering The human digestive system. By the end of the powerpoint students would have covered: -4.2.1 Principles of organisation -4.2.2.1 The human digestive system Includes two required practicals: -Required practical activity 4: use qualitative reagents to test for a range of carbohydrates, lipids and proteins. -Required practical activity 5: investigate the effect of pH on the rate of reaction of amylase enzyme. There is also an additional practical on temperature and enzyme action.