Study Guides

Master OCR GCSE Biology topic 7.5: Adaptations. This guide breaks down structural, behavioural, and functional traits, demystifies surface area to volume ratio calculations, and provides examiner-approved techniques to secure top marks.

This guide breaks down the fundamental principles of how animal bodies are organised, from specialised cells to complex organ systems. It focuses on the digestive and circulatory systems, enzyme action, and the data interpretation skills required by AQA to secure top marks.

This study guide provides a comprehensive overview of two key bacterial diseases for AQA GCSE Biology: Salmonella and Gonorrhoea. It covers their transmission, symptoms, and control methods, with a focus on exam technique and common pitfalls to help you secure top marks.

This topic explores how human activities impact biodiversity and ecosystem stability. You'll master the six-step eutrophication process, evaluate the trade-offs of fish farming, and analyse conservation strategies. Expect 4-9 mark questions testing your ability to apply knowledge to unfamiliar data and explain cause-and-effect relationships.

This guide provides a comprehensive overview of Biomass Transfer for OCR GCSE Biology (7.7). It covers the crucial concepts of energy flow, trophic levels, and the reasons for biomass loss, equipping students with the knowledge to tackle calculation and explanation questions in their exams.

This guide provides a comprehensive overview of cancer for WJEC GCSE Biology students, focusing on the key concepts of cell division, tumour formation, and metastasis. It is designed to help students master the content and excel in their exams.

This guide provides a comprehensive overview of WJEC GCSE Biology Topic 8.5: Conservation. It covers everything from biodiversity and conservation methods to the conflicts between human needs and environmental stability, all tailored to help you secure top marks in your exam.

Master AQA GCSE Biology Data Collection (8.2) by learning how ecologists really count organisms. This guide breaks down random vs. systematic sampling, shows you how to nail the calculations, and reveals exactly what examiners want to see for top marks.

This guide breaks down the essential AQA GCSE Biology topic of Developing New Medicines (3.10). It covers the entire process from drug discovery to clinical trials, focusing on the key terminology and concepts you need to secure top marks in your exam.

Unlock top marks in OCR GCSE Biology by mastering Ecosystems (7.1). This guide breaks down complex interactions, from energy flow in food webs to the vital carbon cycle, and provides examiner-approved techniques for tackling quantitative sampling questions.

Unlock the secrets of enzymes, the biological catalysts that drive life itself. This guide provides everything you need to master WJEC GCSE Biology Topic 1.6, from the precise lock-and-key mechanism to interpreting exam-style graphs, ensuring you can secure every available mark.

Unlock the secrets of enzymes, the biological catalysts essential for life. This guide for OCR GCSE Biology (1.6) breaks down the 'Lock and Key' model, factors affecting enzyme rates, and provides examiner-level insights to help you secure top marks.

Master AQA A-Level Biology Homeostasis (5.1) by exploring how the body maintains a stable internal environment. This guide breaks down blood glucose regulation and osmoregulation, providing examiner insights and multi-modal resources to help you secure top marks.

Homeostasis is the maintenance of a constant internal environment within restricted limits, achieved through negative feedback mechanisms. This topic is crucial for OCR A-Level Biology, covering thermoregulation, glucoregulation, and osmoregulation—expect 6-10 mark questions requiring detailed knowledge of hormonal pathways and cellular mechanisms.

Master the AQA GCSE Biology topic of the Human Endocrine System with this comprehensive study guide. We'll break down how chemical messengers called hormones control everything from your blood sugar to your mood, and show you exactly how to secure top marks in your exam.

Master AQA A-Level Biology Inheritance (3.2) with this comprehensive guide. We break down everything from monohybrid crosses to epistasis and the Chi-squared test, giving you the tools to tackle exam questions with confidence and secure top marks.

Master Edexcel A-Level Biology Inheritance (3.2) with this guide, packed with examiner insights, worked examples, and multi-modal resources. Learn to construct flawless genetic diagrams, nail statistical tests, and avoid common pitfalls to maximise your marks.

Unlock the secrets of your DNA! This guide demystifies WJEC GCSE Inheritance, showing you how to master genetic diagrams, define key terms with examiner precision, and secure top marks. From Punnett squares to pedigree charts, we'll make you an expert in predicting how traits are passed down through generations.

Levels of Organisation is a foundational topic that establishes the biological hierarchy from sub-cellular structures to complete organisms. This topic is critical for understanding how cells, tissues, organs, and organ systems work together, and it underpins much of the rest of your GCSE Biology course. Examiners frequently test precise definitions and the ability to distinguish between similar cells forming tissues versus different tissues forming organs.

This guide provides a comprehensive overview of Meiosis (AQA GCSE Biology 6.2), a crucial topic for understanding genetic variation and sexual reproduction. It covers the entire process, from DNA replication to the formation of four unique haploid gametes, and explains how to secure top marks in your exam.

This guide breaks down how pathogens spread, a core topic for your OCR GCSE Biology exam. We'll cover the four main transmission routes and, crucially, how to link them to prevention methods to secure top marks.

This guide covers Photosynthesis (Edexcel GCSE Biology 4.1), a crucial topic for your exams. We break down the core process, limiting factors, and required practicals, providing everything you need to secure top marks, from the chemical equation to exam-style question analysis.

This guide covers photosynthesis (WJEC 4.1), the vital process where plants create their own food. We will break down the chemical reaction, explore the factors that limit its speed, and analyse the practical skills you need to demonstrate, ensuring you are prepared to secure every available mark in the exam.

This guide provides a comprehensive overview of Photosynthesis (OCR GCSE Biology 4.1), focusing on the core concepts, mathematical skills, and practical applications required to excel in your exams. It breaks down limiting factors, the inverse square law, and provides examiner insights to help you secure top marks.

Unlock top marks in AQA GCSE Biology with this guide to Photosynthesis (4.1). We'll break down the core concepts, from the vital chemical equation to the tricky limiting factors, and show you exactly how to apply this knowledge in your exam. This guide is packed with examiner insights, memory hooks, and practice questions to turn a complex topic into guaranteed marks.

Planning experiments is a core AO3 skill tested in 6-mark extended response questions. You'll learn to identify variables, design valid methods, and ensure reliability through repeats. Mastering this topic means predictable marks—examiners reward specificity, logical sequencing, and the ability to control variables effectively.

Plant Hormones (5.3) explores how chemical messengers called phytohormones coordinate plant growth responses to environmental stimuli. This topic is essential for understanding tropisms—particularly how auxins control phototropism and gravitropism—and for Higher Tier candidates, the commercial applications of auxins, gibberellins, and ethene in agriculture and horticulture.

Unlock top marks in A-Level Biology with this deep dive into cellular respiration. This guide breaks down the four critical stages, from glycolysis to oxidative phosphorylation, revealing exactly how your cells generate ATP. Master the exam technique, avoid common pitfalls, and secure your grade with examiner insights and multi-modal resources.

Respiration is the exothermic reaction that transfers energy from glucose in every living cell. This topic is essential for OCR GCSE Biology, covering aerobic and anaerobic pathways, the body's response to exercise, and the respirometer practical (PAG 4). Mastering this will earn you 8-10 marks across Papers 1 and 2.

This guide provides a comprehensive overview of Respiration for WJEC GCSE Biology. It covers the crucial differences between aerobic and anaerobic respiration, the equations you must know, and the practical applications that frequently appear in exams. Master this topic to secure top marks in your biology papers.