A complete lesson covering section 5.1.1 b and c of the OCR Biology specification- how gene linkage and epistasis can affect the phenotypic ratios and how this can be investigated using Chi square. The lesson starts by introducing sex linkage and then includes some examples of genetic crosses involving colour blindness. It then looks at autosomal linkage again using example crosses to support. The lesson the goes on to look at both recessive and dominant epistasis again using lots of examples to support understanding. The lesson closes by introducing the Chi square test As well as the examples the lesson includes lots of exam questions to show how the skills could be assessed I aim to reduce photocopying so all resources are in the PPT (62 slides in total)

A PDF containing an 11 week revision plan covering the topics in the OCR A Biology A level specification. Each week contains a blank mind map, revision placemats to complete and a selection of exam questions and answers The topics covered are: Cells and molecules Respiration Animal exchange and transport Membranes and cell division Disease Nervous communication Plant biology Genetics Hormones and homeostasis Ecology and biodiversity Photosynthesis Some sheets have been adapted from other free resources on TES

A complete lesson covering the specification points from AQA Biology and Trilogy-extremophiles. We have a knowledge rich curriculum so the lesson focuses on the key knowledge required and ensuring that students have remembered this knowledge. Various activities are included including exam practice, application and a do now I actively avoid photocopying so all resources are within the PPT itself All answers provided

A complete lesson covering the specification points from AQA Biology and Trilogy-translocation. We have a knowledge rich curriculum so the lesson focuses on the key knowledge required and ensuring that students have remembered this knowledge. Various activities are included including exam practice, application and a do now I actively avoid photocopying so all resources are within the PPT itself All answers provided

A complete lesson covering the specification points from AQA Biology and Trilogy- bacterial diseases. We have a knowledge rich curriculum so the lesson focuses on the key knowledge required and ensuring that students have remembered this knowledge. Various activities are included including exam practice and a do now I actively avoid photocopying so all resources are within the PPT itself All answers provided

A complete lesson covering the specification points from AQA Biology and Trilogy- viral diseases. We have a knowledge rich curriculum so the lesson focuses on the key knowledge required and ensuring that students have remembered this knowledge. Various activities are included including exam practice and a do now I actively avoid photocopying so all resources are within the PPT itself All answers provided

Two PowerPoints providing two general revision lessons covering topics from the AQA Biology and Trilogy paper 2- topics B5, B6 and B7 Across the two lessons the content covered is: Classification homeostasis human impacts sampling RPA Hormonal control carbon cycle sampling animals Reactions Genetics They include a multiple choice section and lots of exam questions Updated to cover return to normal exam arrangements Also includes the 2022 version All answers provided

A complete lesson revising the specification points 4.7.3 of the AQA Trilogy biology specification- ecosystems. The lesson covers: Communities Levels of organisation Human impacts on the environment There are a variety of activities including lot of exam questions All answers provided Updated 2023 to reflect the return to normal exam arrangements

A complete lesson for the final revision lesson before the AQA B1 exam. It covers a variety of topic areas including some of the RPAs. Includes a variety of activities including a multiple choice quiz and various exam questions Lots po retrieval type activities Includes a version from 2022 and a updated one for 2023 All answers provided

A complete lesson revising the content from AQA Biology and Trilogy specification section 4.2.2- circulation, heart disease and non-communicable disease and 4.2.3- plant tissues and organs. It covers Heart structure Blood vessels Cancer and risk factors Respiratory system Disease interactions Blood CHD Breathing problems Smoking and other risk factors Plant tissues Transpiration All answers included

A complete revision lesson covering section 4.7.2 of AQA topic B7 from both Trilogy and Biology. the lesson covers: Biotic and abiotic factors The water cycle the carbon cycle Sampling RPA Food chains and webs Predator prey relationships Each has a variety of activities along with exam, questions to help assess students recall and understanding All answers provided

A complete lesson revising specification points 5.1-5.3 of the AQA Biology GCSE and Trilogy GCSE. - homeostasis and control It starts at looking at the six named glands and the hormones they produce. It then looks at the flight or fight response and the control of blood sugar as specific examples. The lesson then moves to look at type 1 vs type 2 diabetes icnldin exam questions for review. After some further review questions the lesson then moves on to looking at thyroxine and its negative feedback control. The lesson closes with looking at IVF through a series of exam questions with various levels of response The lesson also includes questions on the nervous system including the reflex arc and the reactions practical All answers included. Updated 2023 to reflect return to normal exam content

A complete lesson revising sections 4.1.2 and 4.1.2 of AQA trilogy and AQA Biology- cell structure, stem cells and cell division. It starts by reminding students of the difference between plant and animal cells before looking at microscopes and the cell cycle. The includes some summary and some exam questions to check for understanding. the lesson then moves onto stem cells covering what they are and their uses again including summary questions. The lesson closes with a series of long answer exam questions practicing evaluative techniques with a particular focus on different uses of stem cells or stem cell All answers provided Updated 2023 to reflect the return to normal exam content

A complete lesson covering the calculation of Chi square. It s designed fro specification point 6.1.2c of the OCR course but would be fine for any A level biology course. It starts with a reminder of calculating mean and range before introducing the chi square. The lesson goes through the theory including critical values. It then moves on to a worked example. The rest of the lesson is examples of the calculation including dihybrid inheritance. It also gives a reminder of using a punett square to solve a dihybrid problem. Most examples are based round genetics but one involving mitosis is included. Differentiated summary at the end All answers provided

A complete revision lesson covering the digestion section of AQA module B2- organisation. It also covers the two RPAs (enzymes and food tests) that occur in this topic. The lesson opens with the food tests RPA followed by looking at the components of a balanced diet along with the role of each nutrient in the body. The lesson then moves to look at the digestive system, its components and their individual role. It then looks at the stomach as an example of an organ with its tissues and their functions. The lesson the moves onto enzyme action and the enzymes of the human digestive system. It then covers the enzymes RPA before finishing with a series of exam questions. Includes retrieval type activities All answers are provided and no printing is required Update 11/05/22- sudan III test for fats added Update 08/05/23- changes to reflect return to normal exam arrangements

A full lesson revising content from the AQA Biology module- bioenergetics. This lesson covers photosynthesis and is suitable for both trilogy and the Biology science GCSE. The lesson starts by revising the reactants for photosynthesis and the equation along with the uses of glucose. It then has a quick summary activity before looking at leaf structure. The lesson then moves on to limiting factors with a series of data based activities. In between this the lesson looks at the required practical and covers the method as well as some extension questions. The lesson closes by looking at photosynthesis in ecosystems by considering the carbon cycle (from B7) but also the role played by photosynthesis in determining which plants can grow in differetn areas. All answers provided Requires no printing as all activities are in the PowerPoint

This is a complete lesson covering sections 5.2.2 I, j, k and l of the OCR Biology specification- anaerobic respiration and respiratory substrates. It starts by introducing anaerobic respiration in various organisms including lactate fermentation and alcoholic fermentation. It then goes on to look at respiratory substrates and respiratory quotients including their use and calculation. There are some summary questions to check for understanding before looking at respirometers. The lesson includes a starter, full notes, various student led activities and a differentiated summary at the end. All answers are included. I actively try to reduce photocopying, so all of the lesson resources are within the PowerPoint rather than as extra sheets.