This clear and detailed lesson describes the process of oxidative phosphorylation, including the roles of the electron carriers, oxygen and the mitochondrial cristae and explains the role of chemiosmosis. The PowerPoint has been designed to cover points 5.2.2 (g) and (h) of the OCR A-level Biology A specification and includes details of the electron transport chain, proton gradients and ATP synthase. The lesson begins with a discussion about the starting point of the reaction. In the previous stages, the starting molecule was the final product of the last stage but in this stage, it is the reduced coenzymes which release their hydrogen atoms. Moving forwards, the process of oxidative phosphorylation is covered in 7 detailed steps and at each point, key facts are discussed and explored in further detail to enable a deep understanding to be developed. Students will see how the proton gradient across the inner membrane is created and that the flow of protons down the channel associated with ATP synthase results in a conformational change and the addition of phosphate groups to ADP by oxidative phosphorylation. Understanding checks are included throughout the lesson to enable the students to assess their progress and prior knowledge checks allow them to recognise the clear links to other topics and modules. This lesson has been written to tie in with the other uploaded lessons on glycolysis, the Link reaction and Krebs cycle and anaerobic respiration

This fully-resourced lesson looks at the type of circulatory system found in a mammal (double, closed) and considers how the pulmonary circulation differs from the systemic circulation. The engaging PowerPoint and accompanying resources have been designed to cover point 3.1.2 (b) of the OCR A-level Biology A specification The lesson begins with a focus on the meaning of a double circulatory system and checks that students are clear in the understanding that the blood passes through the heart twice per cycle of the body. Beginning with the pulmonary circulation, students will recall that the pulmonary artery carries the blood from the right ventricle to the lungs. An opportunity is taken at this point to check on their knowledge of inhalation and the respiratory system as well as the gas exchange between the alveoli and the capillary bed. A quick quiz is used to introduce arterioles and students will learn that these blood vessels play a crucial role in the changes in blood pressure that prevent the capillaries from damage. When looking at the systemic circulation, time is taken to look at the coronary arteries and renal artery as students have to be aware of these vessels in addition to the ones associated with the heart. In the final part of the lesson, students are challenged to explain how the structure of the heart generates a higher pressure in the systemic circulation and then to explain why the differing pressures are necessary. This lesson has been written to tie in with the other uploaded lessons from topic 3.1.2 (transport in animals)

A detailed lesson presentation (37 slides) and associated worksheets that guide students through the DNA sequencing method called pyrosequencing. The lesson focusses on the numerous enzymes and substrates which are involved in the cascade of events which eventually leads to the production of light when the conversion from luciferin to oxyluciferin occurs. A step by step guide is used to show the students how these events occur and the different outcomes are explored. There are regular progress checks throughout the lesson so that students can assess their understanding of this topic and the links to similar topics. This lesson has been designed for A-level students and above

An engaging lesson presentation (33 slides) that looks at the key details of asexual reproduction, examines the process in bacteria and plants and also considers the advantages and disadvantages. The lesson begins by challenging the students to discuss whether reproduction always requires two (parents). Students will see how only one parent is involved in this type of reproduction and will focus on how it takes place in bacteria. Moving forwards, students will be introduced to the methods of runners, bulbs and tubers in plants. By making connections to natural selection, students will be challenged to think about the benefits of asexual reproduction. There are regular progress checks throughout the lesson so that students can assess their understanding. This lesson is suitable for both KS3 and GCSE students

An engaging and informative lesson presentation (30 slides) that looks at some of the uses of stem cells in medicine. The lesson begins by challenging the students to define some key terms such as undifferentiated which are associated with these cells. Moving forwards, students will look at the uses of embryonic stem cells including in the treatment of Parkinson’s disease and for tests in drug trials. Students are challenged to consider for homework why the uses of these cells remains controversial. This lesson is designed for GCSE students

This engaging lesson presentation (52 slides) and associated worksheets uses exam questions with displayed mark schemes, quick tasks and quiz competitions to enable students to assess their understanding of the topics found within module B2 of the OCR Gateway A Combined Science specification. The topics which are specifically tested within the lesson include: Diffusion, Osmosis, Active transport, Exchange and transport, Circulatory system, Heart and blood, Plant transport systems, Students will enjoy the competitions such as "Where's Lenny?" and "Take the Hotseat" whilst being able to recognise those areas which need their further attention.

This engaging lesson presentation (57 slides) and associated worksheets uses exam questions with displayed mark schemes, quick tasks and quiz competitions to enable students to assess their understanding of the topics found within module B6 of the OCR Gateway A GCSE Biology specification. The topics which are specifically tested within the lesson include: Genetic engineering, Health and disease, Spread of communicable diseases and preventing the spread, Non-communicable diseases, Treating CVD, Monoclonal antibodies and Modern advances in medicine Students will enjoy the competitions such as "Is this ENGINEERED correctly" and "From NUMBERS 2 LETTERS" whilst crucially being able to recognise those areas which need their further attention

This engaging lesson presentation (55 slides) and associated worksheets uses exam questions with displayed mark schemes, quick tasks and quiz competitions to enable students to assess their understanding of the topics found within module B1 of the OCR Gateway A Combined Science specification. The topics which are specifically tested within the lesson include: Plant and animal cells, Bacterial cells, Light microscopy, Electron microscopy, Enzymes, Aerobic respiration, Photosynthesis, Photosynthesis experiments and Limiting factors Students will enjoy the competitions such as "Shine a LIGHT on any errors" and "Eu vs Pro" whilst crucially being able to recognise those areas which need their further attention

An engaging lesson presentation (58 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within unit B1 of the AQA GCSE Biology specification. The topics that are tested within the lesson include: Eukaryotes and prokaryotes Animal and plant cells Microscopy Chromosomes Diffusion Osmosis Active transport Students will be engaged through the numerous activities including quiz rounds like "A QUESTION of CELLS" and "Take the Hotseat" whilst crucially being able to recognise those areas which need further attention

An engaging lesson presentation (88 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within unit B5 of the AQA GCSE Biology specification. The topics that are tested within the lesson include: Homeostasis Structure and function of the nervous system Control of body temperature Human endocrine system Control of blood glucose concentration Maintaining water balance in the body Hormones in human reproduction Contraception The use of hormones to treat infertility Negative feedback Students will be engaged through the numerous activities including quiz rounds like "Have they got the right BALANCE?" and "Take the IVF Hotseat" whilst crucially being able to recognise those areas which need further attention

This engaging lesson presentation (58 slides) and associated worksheets uses exam questions with displayed mark schemes, quick tasks and quiz competitions to enable students to assess their understanding of the topics found within module B4 of the OCR Gateway A GCSE Biology specification. The topics which are specifically tested within the lesson include: Ecosystems, Competition and interdependence, Pyramids of biomass, Efficiency of biomass transfer, The carbon cycle and Decomposers Students will enjoy the competitions such as "Number CRAZY" and "Take the HOTSEAT" whilst crucially being able to recognise those areas which need their further attention

An engaging lesson presentation (88 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within module B3 of the OCR Gateway A GCSE Biology specification. The topics that are tested within the lesson include: Nervous system Reflexes Hormones Negative feedback The menstrual cycle Controlling reproduction Using hormones to treat infertility Controlling body temperature Controlling blood sugar Maintaining water balance Inside the kidney Students will be engaged through the numerous activities including quiz rounds like "Have they got the right BALANCE?" and "Take the IVF Hotseat" whilst crucially being able to recognise those areas which need further attention

An engaging lesson presentation (59 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within unit B2 (Scaling up) of the OCR Gateway A GCSE Biology specification The topics that are tested within the lesson include: Diffusion Osmosis Active transport Exchange and transport Circulatory systems Heart and blood Plant transport systems Transpiration Students will be engaged through the numerous activities including quiz rounds like “Where’s LENNY?" whilst crucially being able to recognise those areas which need further attention

An engaging lesson presentation (61 slides) and associated worksheets that uses a combination of exam questions, quick tasks and quiz competitions to help the students to assess their understanding of the topics found within unit B5 (Genes, inheritance and selection) of the OCR Gateway A GCSE Biology specification The topics that are tested within the lesson include: Sexual and asexual reproduction Meiosis Dominant and recessive alleles Genetic crosses The history of genetics Natural selection Classification systems Students will be engaged through the numerous activities including quiz rounds like “Number CRAZY" and “Which Scientist is hidden?” whilst crucially being able to recognise those areas which need further attention

A fully resourced lesson which includes an informative lesson presentation (25 slides) and an associated worksheet that show students how to give answers to a certain number of significant figures. The answers to questions in Science are often required to be given in significant figures and this lesson guides students through this process, including the rules of rounding that must be applied for success to be likely. This lesson has been designed for GCSE students but is suitable for KS3

A fully-resourced lesson that looks at the topic of osmosis and how the movement of water between a cell and the solution can affect the appearance of an animal and a plant cell. This lesson includes a detailed and engaging lesson presentation (42 slides) and differentiated worksheets that include exam questions that can be set as homework. There is a lot of key terminology associated with this topic and time is taken to ensure that students understand the meaning of each of these terms before moving forwards. Students are introduced to the different types of solutions and then a step-by-step guide is used to show them how to compare the water potential of the solution and the cell and then how this will determine which was water moves. The main task is differentiated so that students are challenged and can access the work. This lesson has been designed for GCSE students (14 - 16 year olds in the UK) but is also suitable for A-level students

This fully-resourced lesson explores the inheritance of sex-linked diseases in humans and then challenges the students to apply their knowledge to examples in other animals. The detailed PowerPoint and associated differentiated resources have been designed to cover the part of point 6.1.2 (b[i]) of the OCR A-level Biology A specification which states that students should be able to demonstrate and apply their knowledge and understanding of genetic diagrams which include sex-linkage. Key genetic terminology is used throughout and the lesson begins with a check on their ability to identify the definition of homologous chromosomes. Students will recall that the sex chromosomes are not fully homologous and that the smaller Y chromosome lacks some of the genes that are found on the X. This leads into one of the numerous discussion points, where students are encouraged to consider whether females or males are more likely to suffer from sex-linked diseases. In terms of humans, the lesson focuses on haemophilia and red-green colour blindness and a step-by-step guide is used to demonstrate how these specific genetic diagrams should be constructed and how the phenotypes should then be interpreted. The final tasks of the lesson challenge the students to carry out a dihybrid cross that involves a sex-linked disease and an autosomal disease before applying their knowledge to a question about chickens and how the rate of feather production in chicks can be used to determine gender. All of the tasks are differentiated so that students of differing abilities can access the work and all exam questions have fully-explained, visual markschemes to allow them to assess their progress and address any misconceptions.