PowerPoint presentation and worksheet on plant hormones for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Related topic Plant Disease: https://www.tes.com/teaching-resource/resource-12357901 Content Covered: Ethene Gibberellin Auxins Phototropism and geotropism Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on sexual and asexual reproduction for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Content Covered: Sexual and asexual reproduction Gametes Flowering plants Asexual reproduction in plants (runners, tubers and bulbs) Malaria and fungi Pros and cons of sexual reproduction Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on competition and adaptation for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. Content Covered: -Competition for resources -Structural adaptation -Behavioural adaptation -Functional adaptation -Adaptation of microorganisms -Interdependence -Stable communities Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on fossils and classification for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows on from Evolution. (https://www.tes.com/teaching-resource/resource-12557498) Next topic Speciation: https://www.tes.com/teaching-resource/resource-12635041 Content Covered: -Linnaean classification system -Changes in the classification system over time -The three domain system -How fossils form -The origin of life theories -The binomial system -How to use evolutionary trees Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on cloning for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows on from Evolution. (https://www.tes.com/teaching-resource/resource-12557498) Next topic Genetic Engineering: https://www.tes.com/teaching-resource/resource-12633773 Content Covered: -Revision of meristems and therapeutic cloning from previous topics -Tissue culture cloning -Cuttings -Artificial twinning -Cloning adult animals -Bioethics of cloning Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on evolution for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. Next topic Cloning: https://www.tes.com/teaching-resource/resource-12625511 Content Covered: Variation Competition between animals Competition between plants Darwin and Lamarck Antibiotic resistant bacteria as an example Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on genetic engineering for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows on from Cloning. (https://www.tes.com/teaching-resource/resource-12625511) Next topic Fossils and Classification https://www.tes.com/teaching-resource/resource-12634123 COVER IMAGE: Ingrid Moen (et al) Gene expression in tumor cells and stroma in dsRed 4T1 tumors in eGFP-expressing mice with and without enhanced oxygenation.  BMC Cancer. 2012 Content Covered: -Uses for genetic engineering -GM crops -Pros and cons of genetic modification -Gene therapy -Genetic engineering method overview -Insulin producing bacteria -Genetic modification of multicellular organisms Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on decay and biogas for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. Content Covered: -Decomposers and scavengers -Fertiliser production -Rate of decay -The effect of water availability, temperature, oxygen availability and decay organisms on rate of decomposition -Examples of biomes and their impact on decomposition -Aerobic and anaerobic decay -Methane as a biofuel -Generators (aka fermenters or digestors) -Batch biogas generators and continuous biogas generators -Inlets and outlets Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on food chains and trophic levels for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. Content Covered: -Food chains and food webs -Producers, primary consumers, secondary consumers and tertiary consumers -Biomass -Predators and prey -Trophic levels -Herbivores, carnivores and omnivores -Apex predators -Predator/prey cycles Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on food security and farming for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows on from Pyramids of Biomass (https://www.tes.com/teaching-resource/resource-12648627) Content Covered: -Definition of food security -Factors affecting food security -Population increase -Diet and importing food -Impact of war on food security -Environmental change -New pests and pathogens -Cost of farming -Sustainable farming and efficient food production -Bioethics: restricting the movement of farm animals for more efficient production of food Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on pyramids of biomass and biomass transfer for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. Content Covered: -Why food chains are short -Loss of biomass between trophic levels -Loss of energy between trophic levels -Pyramids of biomass and pyramids of numbers -Calculating biomass loss between levels -Calculating efficiency of biomass transfer between levels -Drawing pyramids of biomass to scale Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Biomass Lesson GCSE Biology https://www.tes.com/teaching-resource/resource-12857063

PowerPoint presentation and worksheet on biotechnology for GCSE biology for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows on from Food Security and Farming (https://www.tes.com/teaching-resource/resource-12648627) Content Covered: -Genetically engineering bacteria to produce human insulin -Genetically engineering crops -Producing meat substitutes from fungi (mycoprotein) Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Biotechnology lesson GCSE biology https://www.tes.com/teaching-resource/resource-12857082

Key stage 3 ~ year 7 ~ complete lesson on plant and animal cells. In this lesson students will learn how to describe the parts of a cell and what they do and to explain the similarities and differences between plant and animal cells. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. This lesson includes: -Title slide with learning objectives -Starter task (recall from previous lesson) -Group reading task (literacy) -Keywords activity (vocabulary: nucleus, cytoplasm, cell membrane, mitochondria, cell wall, vacuole and chloroplasts) -Task boxes -Handout sheet task -Discussion task -Numeracy task -All tasks, including the worksheet have an optional self-assessment slide where needed. This presentation is fully editable. -Next lesson Specialised Cells https://www.tes.com/teaching-resource/resource-12650570 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete lesson on specialised cells. In this lesson students will learn how to explain why we need specialised cells and to describe examples of specialised plant and animal cells. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. This lesson includes: -Title slide with learning objectives -Starter task (recall from previous lesson) -Group reading task (literacy) -Keywords activity (vocabulary: specialised cell, neuron, haemoglobin, cell surface area and chloroplasts) -Task boxes -Handout sheet task (fact file completion) -Draw and label -All tasks, including the worksheet have an optional self-assessment slide where needed. -Next lesson Movement of Substances https://www.tes.com/teaching-resource/resource-12650646 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete lesson on unicellular organisms. In this lesson students will learn how to explain what a unicellular organism is, describe the structure of an amoeba and explain how euglena has features of both plant and animal cells. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. This lesson includes: -Title slide with learning objectives -Starter task -Group reading task (literacy) -Keywords activity (vocabulary: unicellular, multicellular, photosynthesis, flagellum and fission) -Task boxes -Handout sheet task -Draw and label -Putting the steps in order to describe a process -All tasks, including the worksheet have an optional self-assessment slide where needed. This presentation is fully editable. -Next lesson revision cells topic https://www.tes.com/teaching-resource/resource-12650813 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete lesson on the movement of substances by diffusion. In this lesson students will learn how to describe what diffusion is and to give some examples of substances which diffuse in and out of cells. Extension questions are included on the slides and there is a pick and mix of different tasks to select from for your students. This lesson includes: -Title slide with learning objectives -Starter task -Group reading task (literacy) -Keywords activity (vocabulary: glucose, oxygen, respiration, diffusion and concentration) -Task boxes -Handout sheet task -Draw and label -Putting the steps in order to describe a process -All tasks, including the worksheet have an optional self-assessment slide where needed. This presentation is fully editable. -Next lesson Unicellular Organisms https://www.tes.com/teaching-resource/resource-12650811 www.tes.com/teaching-resources/shop/Dr_Troilo

Key stage 3 ~ year 7 ~ complete revision lesson for Biology B1a (Cells). This lesson covers the major topics from this unit and can be used to revise for end of topic tests or to address knowledge gaps identified in the end of topic assessments. In this lesson students will revise: -How to use a microscope to observe cells -How to calculate magnification -Parts of the cell and their function -The difference between plant and animal cells -Examples of specialised cells -Diffusion -Unicellular organisms -The presentation includes a free bonus resource specifically for revising the onion cells practical -All tasks, including the worksheet have an optional self-assessment slide where needed. This presentation is fully editable. -Return to the start of the topic: https://www.tes.com/teaching-resource/resource-12975350 www.tes.com/teaching-resources/shop/Dr_Troilo

PowerPoint presentation and worksheet on mitosis for teaching and revision. Simple step by step explanations of concepts up to the end of KS4. This resource follows the AQA Biology GCSE syllabus. Leads on to Binary Fission: https://www.tes.com/teaching-resource/binary-fission-slides-and-worksheet-gcse-biology-aqa-12318380 Content Covered: Chromosomes The cell cycle Mitosis Suitable for remote online distance learning and usable by non-specialists, including for homeschooling. www.tes.com/teaching-resources/shop/Dr_Troilo New! Mitosis lesson: https://www.tes.com/teaching-resource/resource-12830872