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.

A collection of four worksheets that cover gas exchange in cells, lung structure, gas exchange at alveolus and ventilation. The worksheets are aimed at either high ability GCSE students or A-Level students and could be used as either starter tasks, plenaries or homework exercises to consolidate knowledge. Key words: gas exchange, ventilation, alveolus, cells, lungs, trachea, bronchus, bronchioles, intercostal muscles, diaphragm, volume, pressure

A worksheet aimed at A-Level Biology students that looks at various examples of restriction enzymes and whether they are suitable for cutting out a gene from a sequence of DNA. Students must look carefully at the restriction recognition sequence for each enzyme and decide whether it is suitable for removing the gene. This is based on whether the recognition sequence occurs in the middle of the gene or at the ends and whether the enzyme will leave blunt or sticky ends. Key words: Restriction, enzyme, blunt, sticky, gene, DNA, EcoR1, HindIII, BamH1

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 resource aimed at 14-18 year old biology students, this worksheet is useful as a starter or plenary exercise comparing continuous and discontinuous variation. The worksheet requires students to identify which traits fall into which category and considers the classic normal distribution curve shown by continuously variable characteristics. For more able students, the worksheet includes a section on using standard deviation to predict the percentage of the population that would occupy certain ranges. Key words: continuous, variation, discontinuous, genetics, monogenic, polygenic

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 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

A quiz that asks students to give the correct word that matches each description. Useful as a recap of key vocabulary. The worksheet also contains an extension question based on quadrat sampling where students are asked to calculate population density of a plant species.

A worksheet aimed at either 14-16 or 16+ students that are studying the nature of radioactive decay. The worksheet involves learning about the process of radioactive decay by starting with a highly unstable radioactive element and then working through the products of each subsequent decay. Starting with uranium 238, students fill in 14 separate decay stages (showing mass number, atomic number and name of new element formed) until the stable isotope of lead 206 is formed. The activity provides an excellent way of practising and reinforcing ideas on alpha and beta decay. A full answer key is included

A resource aimed at GCSE (14-16 year old) students and tailored specifically for AQA specifications, this crossword provides 16 crossword clues that relate to key vocabulary covered in the topic of mitosis (e.g. cytokinesis, interphase, centromere, chromosome, etc). This resource is ideal for students to practice using key vocabulary and can be used as either a starter or plenary task in lessons. An answer key is provided on the second page. Key words: Mitosis, interphase, cytokinesis, chromosome, division, nucleus, paternal, maternal, gene, cancer, asexual, growth, repair, centromere, clone, identical