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 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 level biology students, this resource uses the context of sickle cell disease to provide synoptic style questions on the nature of haemoglobin, the phenomenon of incomplete dominance, the link between sickle cell disease and malaria and finally, the phenomenon of heterozygote advantage. Key words: sickle cell, heterozygote advantage, malaria, incomplete dominance

An activity aimed at either advanced level biology students or level 3 BTEC applied science students, this resource provides a nice, quick and simple activity that illustrates the primary, secondary, tertiary and quaternary structure of proteins - using nothing more than paper and sellotape! This activity provides a way in which students can see the three dimensional structure of protein for themselves - once the activity is completed, the teacher can then display ribbon diagrams of proteins (e.g. enzymes, haemoglobin, etc) so that students can see the connection between textbook diagrams and images and their model.

This resource consists of two 'active video' worksheets linked to online Youtube videos (links provided on the worksheet). Each video consists of a three to four minute video clip showing some engaging applications of diffusion. The first video clip shows a team of scientists testing shark repellent under water and the second shows a skunk spraying musk as a defense mechanism. Each worksheet provides simple questions that students answer while watching the video - providing the opportunity to then commence a full lesson on the topic of diffusion.

Worksheet that asks students to work through a chi-squared analysis of data from an investigation into PTU tasting ability. Useful as a lesson starter or plenary review on chi-sqaured. Keywords: chi-squared, statistics, PTU, tasting, null hypothesis, probability, degrees of freedom, critical value

A worksheet aimed at advanced biology students, this resource provides prompts and questions to guide student research into co-ordination and homeostasis of the human body. The worksheet consists of questions relating to the role, nature and mechanisms of hormones, local chemical mediators and the nervous system. Key words: nervous system, hormones, homeostasis, chemical mediator, receptor, signal, communication, impulse, co-ordination

A worksheet aimed at advanced biology students, this resource provides a series of exercises that help students understand the nature of the genetic code and the impact of mutations. Students are required to decode a piece of DNA using the decode table provided, before then considering how a substitution, deletion or addition could change how the sequence is decoded. This is an excellent resource for driving home the point about frameshift mutations and how some mutations may be silent.

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 series of eleven questions that require one or two word responses. The worksheet is aimed at biology students who have just completed a lesson on heart structure. The worksheet would be useful as a starter or plenary to consolidate basic key terms and understanding. Answers are provided to all the questions. Key words: heart, atria, ventricle, aorta, vena cava, pulmonary artery, pulmonary vein, blood, pressure, valves, pump

A worksheet that reviews the basics of enzymes and also introduces the idea of activation energy. Useful for a lesson review after a first introductory lesson on lock and key theory Keywords: Enzyme, substrate, complex, activation energy, active site, denaturation, protein

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 resource aimed at advanced biology students that recaps the basic details of kidney function via the use of key words inserted into a passage of text. The worksheet continues on to a research activity that focuses on the advantages and disadvantages of kidney transplant and dialysis treatment. Weblinks for the research are provided. Key words: kidney, transplant, dialysis, glomerulus, filtration, proximal convoluted tubule, distal convoluted tubule, loop of Henle, collecting duct, aldosterone, anti diuretic hormone, osmosis, reuptake, hydrostatic pressure

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

A resource aimed at either GCSE (high ability) or A-Level biology students, this worksheet consists of both an independent research exercise and a series of 'big' open ended questions that require extended answers. The independent research exercise provides key questions prompts to lead students through their research of the structure of the lungs and how ventilation and gas exchange occurs in the lungs. Internet websites are provided in the list of available resources which include animations and video clips. The 'big question' prompts on the second page of the worksheet encourages students to think more deeply about the topic and provide coherent, extensive answers to open questions about the lungs and ventilation. Key words: Lungs, ventilation, alveoli, trachea, bronchi, gas exchange, oxygen, carbon dioxide, intercostal muscles, diaphragm, research, oracy

A starter activity aimed at GCSE biology students, this resource consists of four questions that recap the idea of barriers and phagocytosis as a means of defence against pathogens. The activity has both closed and open questions, with the final question requiring students to describe and explain an illustration of phagocytosis in their own words. Key words: phagocytosis, barriers, pathogens, defence, immune system

A resource suitable for post-16 year old students, this worksheet explores the reasons why fertilisers are necessary for healthy plant growth and the advantages/disadvantages of natural and artificial fertilisers. Key words: Natural, artificial, fertiliser

A twenty question quiz worksheet on the topic of carbohydrates, Suitable for A-Level biology students, this quiz would be a useful starter exercise to recap key vocabulary and definitions at the end of a topic on carbohydrates. Key words: Carbohydrates, glucose, benedict's, reducing sugar, non reducing sugar, glycogen, cellulose, amylose, amylopectin, starch

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 resource aimed at advanced level biology students, this is a revision sheet covering details of pest control using biological agents, chemical control and integrated pest management. Key information is summarised via diagrams and succinct bullet points