A series of six worksheets aimed at advanced biology students, this comprehensive resource provides a series of exercises that discuss the role and properties of haemoglobin. This resource includes a starter task for initial discussion on the behaviour of haemoglobin followed by more detailed discussion on the nature of the oxyhaemoglobin dissociation curve, Bohr shift, haemoglobin in other organisms and comparison of adult haemoglobin to foetal haemoglobin and myoglobin. Key words: haemoglobin, Bohr shift, oxyhaemoglobin, dissociation, oxygen, carbon dioxide, chloride shift, respiration, partial pressure, myoglobin

A worksheet aimed at advanced biology students, this resource is useful as a starter exercise on the topic of gas exchange in insects. The worksheet includes questions on the anatomical layout of gas exchange vessels (spiracles, tracheae and tracheoles) along with a question requiring calculation of the magnification of a diagram. Key words: Insect, gas exchange, tracheae, tracheole, spiracle, diffusion

A worksheet aimed at advanced biology students, this resource provides an exercise on calculating the amount of oxygen unloaded from oxyhaemoglobin when encountering tissues of different oxygen partial pressures. This is a fundamental skill that advanced biology students need in examinations on this topic and so this resource is a useful way to introduce analysis of these graphs. Key words: haemoglobin, oxyhaemoglobin, curve, partial pressure, oxygen, dissociation

A resource aimed at advanced biology students, this worksheet provides 27 'what am I?' quiz questions on the physiology of the digestive system. This is a good resource to use as a recap on key words and vocabulary (of which there is a great deal!) as well as checking on understanding. Key words: digestive system, mouth, oesophagus, peristalsis, stomach, intestine, gastrin, secretin, cckpz, endopeptidase, trypsin, chymotrypsin

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 post-16 biology students, this worksheet contains a list of written instructions for students to draw in order to recreate a diagram of a typical prokaryotic cell. This task can be given to the whole class and then a printed diagram of a prokaryotic cell given out at the end of the activity for students to compare their drawing to; alternatively the class can be divided into two at the start of the lesson - half get a diagram of a prokaryotic cell and are asked to describe each structure while the other half get this worksheet and are asked to draw a diagram; the two halves of each class can then be asked to verbally feedback to each other. This is a useful way of turning an otherwise dry topic into an involving and engaging activity. The worksheet finishes by asking students to research the role of each organelle. Key words: DNA, prokaryotic, nucleus, chromosome, flagellum, pilus, cell wall, murein, mesosome, ribosome, plasmid

A worksheet aimed at advanced level biology students, this resource requires students to calculate the magnification of a mitochondrion by making simple measurements and unit conversions. The final questions are 'challenge questions' that require deeper thought: why mitochondria are required for every cellular activity, the raw materials needed by a mitochondrion and the resolution required to observe mitochondria using a TEM. This worksheet is a useful starter or plenary task to review a previous lesson on these topics.

A worksheet aimed at advanced level biology students who are just commencing a topic on photosynthesis. The worksheet can be set as a homework exercise prior to the topic commencing so that students have a head start on their understanding. The worksheet includes various prompts to focus their research along with a weblink for more detailed information. Keywords: photosynthesis, photosystems, chloroplasts, light dependent reaction, light independent reaction

A resource aimed at advanced biology students, this worksheet contains question requiring students to convert measurements between millimetres, micrometres and nanometres; the final two questions require students to make measurements in order to work out the magnification of a louse and the real size of a red blood cell. This worksheet is ideal as a starter activity to recap a lesson on magnification and units of measurement.

A collection of four worksheets aimed at advanced biology students. The first two worksheets require students to suggest appropriate units of measurements for typical investigations and then introduce the idea of converting between millimetres, micrometres and nanometres - an important skill that is required on most exam papers. The last two worksheets require students to practise their skills in making measurements and calculating magnification of cell images and diagrams, including the use of a scale bar.

A worksheet aimed at advanced biology students consisting of a lengthy passage of text on the topic of passive and active transport. The passage requires key words to be added in the appropriate places. Once complete, students have a written record summary of both passive and active transport processes. This is a good activity to complete at the end of this topic and reinforces key words and vocabulary with students. Suggested answers to each missing space are given at the end of this worksheet

A worksheet aimed at biology students, this resource is designed to practice calculation of percentage changes and designing control experiments for biology investigations. Both skills are often demanded of biology students in examinations and they both tend to be skills that often pose difficulties.

A worksheet aimed at advanced level biology students, this resource provides a lengthy written passage about the structure and function of cell organelles. The worksheet provides a useful written summary of organelle function in eukaryotic cells for student's revision notes but also requires students to process this information in order to label a diagram of animal cell ultrastructure and explain differences between animal and plant cells.

A worksheet aimed at advanced biology students studying the processes of active transport. The worksheet serves as a neat summary exercise, ensuring students know the difference between process such as carrier-mediated transport, channel mediated transport, endocytosis, exocytosis, excretion and secretion. This activity is best used as either a starter or plenary activity at the end of a topic on membranes and transport.

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 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 that aims to recap some of the basic facts about respiration and bridge the gap between GCSE ideology and advanced level study. The worksheet contains several questions that focus on a recap of the basic summary equation, reasons why the summary equation can be misleading, the nature of ATP hydrolysis, exergonic reactions and the site of different stages of aerobic respiration. There is a final synoptic challenge question that requires students to explain how glucose from our diet is transported to respiring cells. Answers to all questions are given on the second page of this worksheet. Key words: respiration, ATP, glucose, exergonic, mitochondria, cytoplasm, aerobic, anaerobic, energy, glycolysis, link, Kreb's cycle, electron transport chain, synoptic, amylase, starch, digestion, ingestion, maltase, maltose, absorption, insulin, epithelial cell, co-transporter, sodium

A resource aimed at advanced biology students, this is a practical activity worksheet that concisely describes the classic experiment involving methylene blue as an artificial hydrogen acceptor in respiration. The experiment involves setting up three test tubes (two with yeast and methylene blue, one without yeast as a control) and observing the decolouration of methylene blue as it is gradually reduced due to the respiratory activity of yeast. The activity sheet contains the technical details of solutions required, a table for students to record their observations and a series of questions that probe student's understanding of the biochemistry involved with these observations. Answers to the questions are provided on the second, duplicate, worksheet. Key words: Respiration, glucose, NAD, methylene blue, reduction, oxidation, yeast, control

A resource aimed at advanced level biology students, this worksheet requires students to identify each key component of a chloroplast and link to its role in photosynthesis. This is a useful starter activity that can be used following an initial lesson on the basics of chloroplast structure or it could be used as a homework research task before teaching a topic on photosynthesis. Answers to all of the questions are provided on the second worksheet. Key words: chloroplast, photosynthesis, chlorophyll, absorb, light, light dependent, light independent, thylakoid, stroma, envelope, photosystems, granum, grana, starch

This worksheet is designed to work with the web-based world mapper resource - an ingenious programme that distorts the world map according to the prevalence of certain factors. For example, if cholera deaths was the selected factor, Africa would be hugely increased in size on the map, whereas North America would shrink to become almost invisible. This worksheet allows students to see the impact of various factors of their own choosing on birth rate, death rate and overall population size. A great way for students to find out for themselves how various factors affect the global population. Key words: Population, geography, death rate, birth rate, disease, economics, religion, biology, map, world, earth, continent, countries, europe, north america, south america, asia, oceania