This topic is included in AS and A Level Papers for OCR (B) Biology. Resources to support this topic can be found below.
Subscribe to A Level Biology to access 600+ resources, plus 15 new Factsheets each year.
SubscribeThis Biology Factsheet: • Explains the term cell signalling and provides examples. • Describes the...
This Biology Factsheet: • Explains what embryology is. • Describes the process of fertilisation....
In this Biology Factsheet you will learn three things about epigenetics;what it is, how it works,...
This Biology Factsheet summarises the medical uses of ultrasound and provides students with exam...
This Biology Factsheet: • Summarises the physiological demands of pregnancy. • Summarises why a...
This Biology Factsheet summarises: • What stem cells are. • The development of embryonic and adult...
This Biology Factsheet: • Gives a simple overview of the processes. • Summarises and compares...
This Biology Factsheet summarises body mass index as a health predictor and provides exam style...
This Biology Factsheet: • Includes key definitions vital for the topic. • Explains why cells...
This Biology Factsheet: • Summarises the effect of alcohol on the body • Evaluates the evidence...
This Biology Factsheet summarises the known effects of smoking on the body and evaluates the...
This Biology Factsheet summarises: • The important terms that are vital for this topic. • How CT...
This Biology Factsheet uses recent exam questions on vitamin C to illustrate some of the ways in...
This Biology Factsheet summarises the types of questions on Growth and Organisms that regularly...
This Biology Factsheet will look at examples of data interpretation on vitamins from recent exam...
This Biology Factsheet summarises the causes, characteristics, diagnosis and treatment of cancer.
This Biology Factsheet summarises: • What growth is. • The growth in flowering plants and animals....
This Biology Factsheet summarises: • The different phases of the eukaryotic cell cycle (a...
This is an A-Level Biology PowerPoint Presentation on Cell Cycle and Mitosis.
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Meiosis and Variation. The Exam...
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Mitosis and Cell Cycle. The Exam...
These are practice examination questions on Meiosis and Variation for A-Level Biology.
These are the answers to the Meiosis and Variation practice questions for A-Level Biology.
These are practice examination questions on Mitosis Cell Cycles for A-Level Biology.
These are the answers to the Mitosis Cell Cycles practice questions for A-Level Biology.
This Biology Factsheet covers antibiotic resistance and outlines the use of phage therapy as an...
This Biology Factsheet: • Describes the wolf as a species. • Outlines reasons for a slow recovery...
This Biology Factsheet summarises: • What is meant by allopatric speciation. • What is meant by...
This Biology Factsheet will explain: • How we measure genetic diversity by calculating the...
This Biology Factsheet will explain: • The meaning of the word ‘biodiversity’.• How we measure...
This Biology Factsheet explains the concept of selective pressure using the example of song thrush...
This Biology Factsheet explains: • Explains the concepts of genetic drift, genetic bottlenecks and...
This Biology Factsheet will focus on homologous structures and, in particular, the pentadactyl limb.
This Biology Factsheet:• Explains the concept of the range of tolerance.• Reviews recent exam...
This Biology Factsheet reviews the controversy as well as recent exam questions on human evolution.
This Biology Factsheet: • Outlines how Charles Darwin used his observations of finches in the...
This Biology Factsheet summarises: • Animal adaptations to drought.• Plant adaptations to drought.•...
This Biology Factsheet should also help you to develop a good examination technique. Poor...
This Biology Factsheet summarises: • The process of speciation. • Modern examples of evolution. •...
This Biology Factsheet describes: • Saprobiontic and parasitic modes of nutrition, illustrated by...
This Biology Factsheet summarises: • Dentition in a named herbivore and a named carnivore. •...
This Biology Factsheet summarises: • The understanding of the need for classification of organisms...
This Biology Factsheet: • Identifies the four key principles that are needed to understand...
This Biology Factsheet: • Defines what is meant by species diversity. • Examines how we measure...
This Biology Factsheet summarises how plants have adapted in order to survive in dry environments.
This is an A-Level Biology PowerPoint Presentation on Animal Behaviour.
This is an A-Level Biology PowerPoint Presentation on Classification.
This is an A-Level Biology PowerPoint Presentation on Ecology 1 (Population Density and the...
This is an A-Level Biology PowerPoint Presentation on Ecology 2 (The Carbon Cycle).
This is an A-Level Biology PowerPoint Presentation on Ecology 3 (Ecological Study).
This is an A-Level Biology PowerPoint Presentation on Ecosystems and Energy Transfer.
This is an A-Level Biology PowerPoint Presentation on Evolution.
This is an A-Level Biology PowerPoint Presentation on NPP and Trophic Levels.
This is an A-Level Biology PowerPoint Presentation on Nutrient Cycles.
This is an A-Level Biology PowerPoint Presentation on Selection and Speciation.
This is an A-Level Biology PowerPoint Presentation on Stem Cells.
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Biodiversity and Taxonomy. The...
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Ecology. The Exam Doctor...
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Evolution. The Exam Doctor...
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Field Studies. The Exam Doctor...
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Human Influences. The Exam...
These are practice examination questions on Biodiversity Taxonomy for A-Level Biology.
These are the answers to the Biodiversity Taxonomy practice questions for A-Level Biology.
These are practice examination questions on Ecology for A-Level Biology.
These are the answers to the Ecology practice questions for A-Level Biology.
These are practice examination questions on Evolution for A-Level Biology.
These are the answers to the Evolution practice questions for A-Level Biology.
These are practice examination questions on Field Studies for A-Level Biology.
These are the answers to the Field Studies practice questions for A-Level Biology.
These are practice examination questions on Management of Human Influences on Environment for...
These are the answers to the Management of Human Influences on Environment practice questions for...
This Biology Factsheet: Explains the difference between Gram-negative and Gram-positive bacteria....
This Biology Factsheet: Explains the need for a circulatory system.Describes the organisation of...
This Biology Factsheet: • Describes the role of the immune system. • Describes the body’s three...
This Biology Factsheet: • Describes the outbreak of the Zika virus. • Explains the effects of the...
This Biology Factsheet: • Describes the symptoms of rickets. • Explains why vitamin D is essential...
This Biology Factsheet summarises: • How allergens cause inflammation. • Eosinophils and mast...
This Biology Factsheet summarises: • The cause of multiple sclerosis (MS). • The structure of a...
This Biology Factsheet summarises: • Inflammatory responses. • Dealing with pathogens. • The...
This Biology Factsheet: • Summarises the latest research efforts to find a cure for Alzheimer’s.•...
This Biology Factsheet summarises: • How Salmonella enters and affects the body. •...
This Biology Factsheet: • Explains the nature and biological impact of the bacterium Vibrio...
This Biology Factsheet summarises: • The cause and means of transmission of malaria. • The...
This Biology Factsheet: • Outlines how and why BST is used in the US but is banned in the EU. •...
This Biology Factsheet summarises what avian influenza is, how it spreads, how it infects humans...
This Biology Factsheet summarises: • How TB spreads. • How TB affects the human body. • Why TB is...
This Biology Factsheet summarises: • The role of cholesterol in coronary heart disease. • Recent...
This Biology Factsheet summarises viral structure and function and, by using recent exam questions,...
This Biology Factsheet summarises: • What an infectious disease is. • The methods of...
This Biology Factsheet summarises concentrates on common misunderstandings about vaccines and...
This Biology Factsheet summarises: • The structure of the human immunodeficiency virus (HIV) and...
This Biology Factsheet summarises the structure of a prokaryotic cell, the range of prokaryotic...
This Biology Factsheet will describe the structure of different types of viruses, their life cycles...
This is an A-Level Biology PowerPoint Presentation on Bacteria, Viruses, TB, HIV.
This is an A-Level Biology PowerPoint Presentation on Cholera as a Prokaryote.
This is an A-Level Biology PowerPoint Presentation on The Immune System.
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Immunity. The Exam Doctor...
This Biology Factsheet: Explains the difference between Gram-negative and Gram-positive bacteria....
This Biology Factsheet covers antibiotic resistance and outlines the use of phage therapy as an...
This Biology Factsheet: Describes the outbreak of the latest coronavirus and explains why it...
This Biology Factsheet:Explains the term coronary heart disease.Explains how the disease...
This Biology Factsheet: • Outlines what cancer is. • Describes the different types of cancer. •...
This Biology Factsheet: • Summarises the causes and health effect of PMs and diesel fumes. •...
This Biology Factsheet will focus on myeloid leukaemia but the general principles apply to all...
This Biology Factsheet: • Describes the cause, nature and danger of whooping cough. • Explains why...
This Biology Factsheet: • Describes the causes and characteristics of malignant melanomas. •...
This Biology Factsheet summarises: • The causes of prostate cancer. • The risk factors of prostate...
This Biology Factsheet summarises: • How allergens cause inflammation. • Eosinophils and mast...
This Biology Factsheet summarises: • Pathogens and vaccines. • Types of vaccine. • Oral vaccines in...
This Biology Factsheet summarises: • Key terminology vital to the topic. • The life-cycle of...
This Biology Factsheet: • Briefly summarises the problem of resistance. • Summarises the latest...
This Biology Factsheet describes the Biology of Clostridium difficile and the problems that it is...
This Biology Factsheet summarises where students commonly go wrong in answering questions about...
This Biology Factsheet summarises: • The origins of penicillin. • Penicillin production. • The...
This Biology Factsheet summarises concentrates on common misunderstandings about vaccines and...
This Biology Factsheet summarises: • The production of monoclonal antibodies. • The uses of...
This Biology Factsheet summarises the causes, characteristics, diagnosis and treatment of cancer.
This Biology Factsheet summarises: • The nature of antibiotics, their mode of action and their...
This Biology Factsheet summarises: • What a vaccine is and how vaccination can control disease. •...
This Biology Factsheet summarises: • Disinfection by general washing and personal hygiene. • Key...
This is an A-Level Biology PowerPoint Presentation on Bacterial Variation and Antibiotics.
This is an A-Level Biology PowerPoint Presentation on Chemical Imbalance and Disease.
This is an A-Level Biology PowerPoint Presentation on Disease and Epidemiology.
This is an A-Level Biology PowerPoint Presentation on Lung Disease.
This is an A-Level Biology PowerPoint Presentation on Obesity and Heart Disease.
This is an A-Level Biology PowerPoint Presentation on The Effects of Smoking.
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Diseases and Immunology. The...
This is an A-Level Biology Exam Doctor PowerPoint Presentation on Diseases. The Exam Doctor...
These are practice examination questions on Disease and Immunology for A-Level Biology.
These are the answers to the Disease and Immunology practice questions for A-Level Biology.
These are practice examination questions on Diseases for A-Level Biology.
These are the answers to the Diseases practice questions for A-Level Biology.
These are practice examination questions on Immunity for A-Level Biology.
These are the answers to the Immunity practice questions for A-Level Biology.
