A worksheet aimed at advanced level biology students as a quick review of the main details of the fluid mosaic structure of cell membranes. There is a clear diagram that requires labelling along with follow-up questions on the function of each component.

A worksheet aimed at advanced level biology students that reviews the key points about facilitated diffusion across a membrane. The worksheet includes reference to factors that determine whether a substance can pass freely across a membrane, the nature of carrier and channel proteins, the requirement of ATP and graphs comparing rate of uptake via simple diffusion versus facilitated diffusion (this is an oft-asked exam question, so useful for students to review this in lessons).

This resource consists of two worksheets aimed at advanced biology students or level 3 applied science students. The first worksheet is a simple review of how an electron microscope functions and the key points about magnification, resolution and TEM/SEM (the image is that of a tapeworm head). The second worksheet is a table comparing electron microscopes with light microscopes. Three different web references are given and students are required to use these to complete the table. At the end of the exercise, they should be able to confidently compare and contrast light microscopes with electron microscopes.

A worksheet aimed at advanced level biology students, this resource is useful as a review of how colorimeters work and how they should be operated. The second worksheet contains a list of questions on different types of error that may result from laboratory investigations, some of which may be experienced when using a colorimeter: zero errors, systematic errors and random errors. The third worksheet is a differentiated version of the above, with an emphasis towards more simple ideas on the difference between qualitative and quantitative errors and calibration curves.

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 level biology students, this resource provides a two dimensional diagram showing the ultrastructure of a eukaryotic cell. Students are required to identify the organelles, state their function, list the sequence of organelles that would be involved in the production of proteins and finally complete an exercise on calculating magnification of a mitochondrion.

A worksheet aimed at advanced level biology students, this resource consists of an identification exercise whereby students are asked to name each organelle in a 3D diagram of a cell, followed by questions about the functions of some of these organelles. The second worksheet provides questions on calculating the magnification of a mitochondrion and the principles of magnification, resolution and electron micrographs - these questions are common place on most advanced biology specifications, so it is useful to practise these questions during lessons.

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 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

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 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

This resource consists of two worksheets, each of which contains a task on identifying structures associated with the lungs and thorax, followed by a table which requires students to identify the key events that occur during ventilation. Each worksheet contains slightly different terminology, making one more suitable for A-Level and one more suitable for GCSE. The worksheets can be used as a starter or plenary task to recap student's knowledge. Key words: Intercostal, lungs, pressure, Boyle's law, diaphragm, ribs, contract, relax, trachea, cartilage, alveoli, bronchus, bronchi

A resource aimed at post-16 biology students, this is a collection of three worksheets that covers the process of ventilation, use of a spirometer and interpretation of spirometer traces. These worksheets are perhaps best used as starters or plenaries to recap key information and consolidate the facts.

A resource aimed at post-16 biology students, this is a quiz requiring short, simple answers that focus on factual recall. The worksheet covers the structure of the lungs and airway passages (e.g. trachea, bronchus, bronchiole, alveolus) along with associated structures of the chest (e.g. intercostal muscles, diaphragm) and contains some extension questions requiring knowledge of lesser known structures. The worksheet also contains two application questions requiring an explanation of why individuals with emphysema often lack energy and why treatment of emphysema with pure oxygen can help alleviate the symptoms.

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 (three different versions are included) that is aimed at Advanced Biology students and which discusses how heart rate is controlled by both the brain and hormones. Each worksheet has a slightly different emphasis and can be adapted to the needs of your class. Topics covered include: 1. How the heart is innervated by the brain 2. The nature of sympathetic and parasympathetic control 3. The involvement of hormones in controlling heart rate 4. The action of neurotransmitters at synapses 5. The action of drugs that can affect the cardiac cycle 6. How chemoreceptors and baroreceptors are involved in maintaining a constant blood pressure

A resource aimed at Advanced Biology students, this worksheet provides a diagram and questions on how the cardiac cycle is under myogenic control. The worksheet begins with a labelling activity, requiring students to recall key vocabulary such as sino-atrial node, atrioventricular node, Bundle of His and Purkinje fibres. The next task requires sequencing of the appropriate events that occur as electrical impulses are generated within heart muscle. Finally, the worksheet provides some questions requiring more detailed understanding as to why these events happen in the order that they do. An ideal resource to use as either a plenary or lesson starter to recap and consolidate knowledge. Key words: sino-atrial node, atrioventricular node, Bundle of His, Purkinje fibres, systole, diastole, atria, ventricles

A comprehensive worksheet aimed at Advanced Biology students that deals with the fundamentals of heart structure and function. The worksheet begins with a simple labelling task of the heart, followed by questions on its structure and layout. The worksheet then moves on to a sequencing task which requires ordering of the vents of the cardiac cycle. Finally, there is a series of questions that require students to identify the reasons for valves opening and closing during the cardiac cycle. Two additional worksheets are also included which provides a shorter, edited format more useful as a short starter activity and a worksheet that includes a pressure change graph for students to reference when they complete the activity on valves opening and closing. Key words: cardiac, heart, structure, atria, ventricles, valves, cycle, pressure

A resource aimed at biology students studying surface area: volume ratio. This worksheet discusses the nature of surface area:volume ratio and why it is important in terms of gas and heat exchange in living organisms. The first worksheet covers basic principles of calculating surface area and volume of cubes of varying sizes, followed by calculation of surface area:volume ratio. Unlike many textbook resources, this worksheet emphasises the fact that surface area is linked to the ABILITY to exchange whereas volume is linked to the NEED to exchange. The second worksheet considers how this principle is applied to adaptations for heat exchange in different species of fox and finally how metabolic rate is influenced by the size of an organism and its ability to exchange heat with the surroundings. Key words: Surface area, volume, ratio, exchange, cube, heat, gas, metabolism, fox, ears

A resource designed for A-Level Biology students, this worksheet provides questions and diagrams to develop and consolidate student's understanding of the circulatory system layout and structure of the heart. The first page contains questions relating to the dual circuit found in mammals and clarifies the nature of arteries, veins and oxygenated/deoxygenated blood. The second page contains a detailed and labelled diagram of the heart that would provide a useful reference during a heart dissection. The final questions are ideal follow up questions to answer post-dissection or possibly to act as prompts for a teacher to ask during the dissection. The resource is differentiated - the first worksheet provides a diagram of the heart with full labels. The second worksheet has number prompts instead and an instruction to use available textbooks, etc to provide the labels. If you have planned to deliver a heart dissection practical, this is very much a self-contained resource that will serve as a starter and plenary for your session. Key words: heart, dissection, valves, atria, ventricles, aorta, pulmonary, artery, vein