A worksheet aimed at advanced biology students, this is ideal as a starter or plenary task following a topic on glucose homeostasis. The worksheet consists of eighteen questions related to glucose homeostasis (a 'what am I?' quiz) which require single word answers. All answers are provided on the second page of the worksheet. A good activity to consolidate key word vocabulary from this topic. Key words: glucose, glycogen, homeostasis, starch, gluconeogenesis, glycogenolysis, liver, pancreas, islets of langerhans, alpha cells, beta cells

This resource is aimed at high ability GCSE biology students or A-level students. It is an application task and is designed to test understanding of the key stages involved with transport and exchange of respiratory gases. In most animals, there are different phases of gas exchange: breathing, exchange of gases at the alveolus, transport of gases by the circulatory system, and exchange of gases with tissues. The worksheet requires students to identify which stage(s) are interfered with due to various diseases and disorders.

A resource aimed at advanced biology students, this worksheet is a starter or plenary exercise that requires students to draw out a biochemical flow chart showing the sequence of events that occur during glycolysis. After this initial memory recap, students are then required to answer a series of questions about the process which checks that they understand the key points. Key words: glycolysis, pyruvate, glucose, NAD, reduction, oxidation, coenzyme, ATP, energy, ADP, cytoplasm, anaerobic, triose phosphate

A worksheet aimed at advanced biology students, this resource focuses on how the HIV virus has evolved resistance to drug treatments over the last few decades and how some individuals have evolved resistance to the virus. The resource contains two articles (from BBC News and Medical News Today) as stimulus material followed by questions that require students to link their knowledge to these real-life applied examples. This resource is ideal stretch and challenge material for more able students once they have completed a topic on evolution. Key words: HIV, resistance, evolution, disease, virus, AIDS, drugs, medicine

A worksheet aimed at advanced level biology students, this resource uses mallards as an example of directional selection. Students are required to predict the effect of climate changes to the amount of subcutaneous fat in a population of mallards over time. The worksheet requires students to predict the effect on a normal distribution curve and then finally explain the process of directional selection using the key phrases provided. Key words: directional, selection, mallard, normal distribution, reproductive success, differential, frequency, alleles, variation

A worksheet aimed at advanced biology students, this resource aims to clarify details that students often struggle with in their understanding of meiosis. The worksheet requires students to draw a pair of chromosomes in a cell that will undergo meiotic cell division; students are asked to label the pair of chromosomes with genes and show the appearance of these chromosomes after DNA replication has occured, after meiosis I and after meiosis II. The worksheet also includes questions that students are required to answer in order to test their understanding of meiosis. This resource is a valuable exercise to conduct with students in order to identify and address misconceptions/misunderstandings that can often occur in this topic. Keywords: meiosis, chromosomes, interphase, prophase, metaphase, anaphase, telophase, DNA, replication, diploid, haploid, gene, loci, heterozygous, homozygous

A worksheet aimed at advanced biology students, this resource consists of a labelling exercise on the structure and layout of cells in the retina. The worksheet continues with synoptic style application questions about various visual phenomena (e.g. visual acuity, night blindness, averted vision, bleaching of rods and cones). These questions are ideal for building synoptic understanding of how and why the cells of the retina are structured. Key words: Retina, Eye, rods, cones, sclera, choroid, bipolar cell, ganglion cell, sensory neurone, blind spot, fovea, visual axis, lens, suspensory ligament, ciliary muscles, pupil, iris

A worksheet aimed at advanced biology students, this resource is useful as either a starter or plenary task for the topic of glucose homeostasis. The worksheet provides a negative feedback flow diagram and questions on the specific roles of insulin and glucagon. Key words: insulin, glucagon, glucose, glycogen, negative feedback

This resource is aimed at advanced biology students and includes two differentiated practical schedules for the observation of phototactic behaviour in blowfly larvae (maggotts). Both schedules include a brief introduction to the nature of taxis behaviour, followed by details of the practical task. A table to collate data is provided, followed by a step-by-step method of using the chi-squared test to assess statistical significance. The worksheet for higher ability students also contains extra challenge questions on the reason for statistical testing and the rationale for using chi-squared. Key words: behaviour, blowfly larvae, maggotts, statistics, phototaxis, light, response, chi-squared

A resource aimed at advanced biology students, this is a revision worksheet with associated check questions and answers on the topic of human population changes. Included are topics on calculating percentage population growth, demographic pyramids, demographic transition patterns and survival curves. The worksheet concludes with exam-style questions with mark schemes for students to check their understanding.

A resource aimed at applied science/health and social care or medical physics students (either level 2 or 3) that provides a vocational discussion on how radiopharmaceuticals are used in the treatment and diagnosis of illnesses. The worksheet contains twelve questions that students are required to answer while the video plays (link to youtube video is provided on the worksheet). This is best used as a starter activity for this topic and as a prompt for further discussion. Asking students to answer questions while they watch the video helps to ensure that they are actively engaged and that they have a record of the information in their notes afterwards. Key words: radiopharmaceuticals, isotopes, cancer, radiotherapy, imaging, gamma, beta, alpha, radiation

A worksheet aimed at advanced level biology or applied science students, this resource provides several question prompts that require students to research norm blood count values and the nature of various diseases and disorders of the blood: leukaemia, sleeping sickness, anaemia and malaria. The worksheet includes weblinks and references for students to use as part of their research. Key words: blood, count, malaria, leukaemia, sleeping sickness, trypanosomes, plasmodium, anaemia, red blood cells, white blood cells, erythrocytes, leukocyctes

A starter worksheet aimed at GCSE Biology students, this resource provides five questions that recap basic definitions and the concept of magnification. The final questions require students to make measurements of the bacterial cell diagram and calculate magnification of the image (converting millimetres to micrometeres in the process). A useful resource to use in order to reinforce some of the basic ideas on the topic of bacterial/prokaryotic cells. Key words: AQA, biology, bacterial cells, magnification, micrometres, prokaryotic

A resource aimed at GCSE biology students, this worksheet provides a brief review of basic key terms (e.g. antibody, antigen, phagocyte, lymphocyte) followed by more open ended and challenging questions that require students to fully explain the principles of active immunity in their own words. Key words: active, immunity, phagocyte, lymphocyte, vaccination, antibody, antigen

A worksheet aimed at A-Level Biology students which begins with a quiz on key word definitions (e.g. habitat, population, community, ecosystem, biotic factor, abiotic factor) and then moves on to the concept of diversity. The worksheet includes an exercise on calculating diversity index for two habitats and subsequent interpretation of results. Keywords: Biodiversity, habitat, population, biotic, abiotic, ecosystem, community, population, diversity index

A resource aimed at advanced biology students that looks at how organisms (a kagaroo rat is used as an example) in desert environments have both physiological and behavioural adaptations to cope with their environment. Key words: osmoregulation, behavioural, physiological, desert, water potential, osmosis, kidney, loop of Henle, cortex, medulla, sweating

A worksheet aimed at advanced biology students, this resource provides 27 questions on the topic of gas echange across insects, amoeba, fish and mammals. Each question requires a simple one or two word answer. This is a useful exercise to use as a starter recap on the basics once these topics have been taught. Key words: gas exchange, fish, amoeba, insects, mammals

A worksheet aimed at advanced level biology students which serves to review the reasons for the hydrophilic/hydrophobic nature of phospholipids. The worksheet also contains simple matching tasks for the name of a component in the fluid mosaic model and its function.

Climate change is sometime a 'dry' topic and difficult to include much in the way of practical experiences for students. This worksheet contains a practical procedure that looks at the effect of temperature on the heart rate of Daphnia and the resultant impact on ecosystems. There is also provision for the analysis of results using 95% confidence limits and standard error. An engaging way to look at the impacts of climate change and global warming on living organisms. Key words: Daphnia, heart rate, climate change, global warming, temperature, food chains, ecology, 95% confidence limits and standard error

Biological molecules is often a topic that students struggle with in A-Level Biology. This resource provides a table in which students can pull together all their notes on the different categories of molecules, including carbohydrates, fats and proteins. Nucleic acids are also included as extension and to foster links between different units.