A summary worksheet that simplifies information required for two statistical tests: chi-squared and 95% confidence limits + standard error. The first pages of the worksheet focus on the need to conduct statistical tests and an understanding of what the mean and standard deviation tells us about data. Key words: standard deviation, mean, chi squared, 95% confidence limits, standard error

A worksheet aimed at A-Level Biology students whereby they must decide which is the appropriate statistical test to use (out of Spearman Rank, 95% confidence limits and standard error and chi-squared). A useful exercise to do with a class once the principles of these statistical tests has been taught; can students confidently decide which is the appropriate test to use?

A resource aimed at advanced biology students, this is a table that displays the structural formulae of various biological molecules, including triglyceride fats, cellulose, amylopectin, a tripeptide, maltose and sucrose. Students are required to identify each molecule and also which enzyme is responsible for breaking it down plus the breakdown products.

A worksheet aimed at advanced biology students, the first page of this resource provides a sequencing activity on the topic of DNA replication. The second page of the worksheet focuses on evidence for semi-conservative replication and requires students to follow the work of Meselsohn and Stahl by colouring radioactively labelled strands of DNA in successive generations.

A worksheet aimed at advanced biology students, this resource consists of 23 questions relating to the topic of translation/protein synthesis. Each question requires a single word answer. This is a good exercise to reinforce key vocabulary. The final few questions focus on the words associated with cancer and loss of control of the cell cycle.

A starter/plenary worksheet that can be used to recap the events of action potential generation, propagation of an impulse and factors affecting speed of impulse transmission Key words: impulse, nerve, action potential, transmission, propagation, speed

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 comprehensive four-page worksheet that deals with the physiology and function of the liver. This resource is aimed at advanced biology students and begins with a synoptic starter task that examines how blood flows through major body organs and the overall role of the liver in the mammalian circulatory system. The worksheet then moves on to look at gross anatomy of the liver and microscopic histology of the liver, covering details of the the liver lobules, bile canaliculi, sinusoids, hepatocytes and Kupffer cells.

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 resource aimed at advanced biology students, this worksheet links understanding of mitosis to the mechanisms by which various cancer chemotherapy drugs (taxol, vincristine, methotrexate, adriamycin and cytoxan) work. Keywords: cancer, mutation, disease, chemotherapy, mitosis, tumour, malignant, benign

A resource aimed at advanced biology students, this worksheet provides an overview of the nervous system including how different parts are categorised, how nerve impulses are relayed around the body and the structure of different types of neurones. A useful exercise to give to students at the start of a topic on the nervous system. Key words: nervous system, neurones, relay, sensory, motor, cns, pns, autonomic, reflex arc, sympathetic, parasympathetic

A worksheet aimed at 14-18 year old biologists which recaps the basics of stimulus and response in the nervous system, along with the details of the reflex arc. Key words: stimulus, reflex, arc, neurone, sensory, motor, relay, receptor, response

A worksheet aimed at advanced biology students which reviews transport of molecules and ions across a cell membrane. The questions include matching definitions of passive and active transport, predicting which molecules or ions can penetrate a plasma membrane and a review of Fick's law. The resource is useful as a starter or plenary activity at the end of a topic on cell membranes and transport.

A worksheet aimed at advanced biology students, this resource focuses on the five criteria (Koch's postulates) required for establishing whether a given factor is a causation of a lifestyle disease. The worksheet includes various graphs from different studies, with students required to comment on the evidence that they provide.

A comprehensive worksheet aimed at advanced biology students, this resource provides an initial starter task that focuses on the nature of the genetic code. The worksheet then moves on to consider the nature of genetic disease with a particular focus on sickle cell anaemia and phenylketonuria. Key words: DNA, triplet, code, codon, mutation, sickle cell, phenylketonuria

A worksheet aimed at advanced biology students that introduces the concept of disease. The worksheet covers categories of disease (e.g. infectious, lifestyle, inherited), examples of disease, mechanisms of infectious disease, interfaces for pathogens and interpretation of epidemiological patterns.

A worksheet aimed at advanced level biology students, this resource provides a twenty question quiz on key processes involved in gene technology. The resource is ideal to use as a starter or plenary exercise once this topic has been taught, as a way of reinforcing key vocabulary and terms.

A worksheet aimed at advanced biology students, this resource provides a series of questions and diagrams that test student's understanding of transcription and translation. A useful exercise to use as consolidation/recap following the teaching of this topic. Key words: DNA, transcription, translation

A worksheet aimed at advanced biology students, this resource requires students to use their knowledge of complementary base pairing to deduce the percentage of each base present within a piece of DNA for various organisms. Key words: DNA, structure, base, percentage, helix, semi-conservative

A worksheet aimed at advanced level biology students, this resource serves as a simple starter or plenary activity to recap some of the main vocabulary and key terms met during a topic on photosynthesis. Answers to all the questions are provided on the second page of the worksheet.