A worksheet designed for A-Level Biology students that reviews the meaning of key words related to ecology (population, community, ecosystem, etc). The worksheet includes questions on the ethics of conservation work carried out by ecologists and includes full answers at the end. Key words: Ethics, ecology, ecosystem, abiotic, biotic, conservation, population, community, niche, competition, risk, hazard

A resource aimed at either high ability 14-16 year olds or 16+ students, this worksheet provides an introductory starter activity on the topic of distillation. The resource requires students to explain what is happening at each stage of some typical distillation equipment and calculate percentage yield as a preamble to a lesson where these very techniques are practised.

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 worksheet aimed at either higher ability 14-16 students or advanced biology students, this resource is useful as a starter or plenary exercise to recap ideas on homeostasis and the mechanisms by which heat can be gained or lost (various scenarios are given for students to explain). The worksheet concludes with some research tasks on the physiological mechanisms of thermoregulation. Key words: homeostasis, thermoregulation, temperature, conduction, convection, radiation, heat gain, heat loss

A resource aimed at advanced level biology students, this resource provides fifteen questions which require students to respond with the appropriate term relating to their understanding of meiosis. Useful as a starter or plenary exercise to consolidate understanding. Key words: meiosis, mitosis, diploid, haploid, homologous, chromosomes, cells, gametes

A worksheet aimed at advanced biology students, this resource is suitable as a lesson starter for a topic on gas exchange in fish. The worksheet requires students to consider the difference in circulatory system layout between a fish and a mammal before focusing on the differences between concurrent and counter-current exchange. Key words: fish, circulatory, counter-current, concurrent, blood, gas exchange, oxygen, carbon dioxide, gills, Fick's law, equilibrium, surface area, concentration gradient, exchange surface

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

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 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 worksheet is ideal as a starter or plenary recap of the light dependent reactions of photosynthesis. The worksheet includes a space for students to draw out the series of light dependent reactions from memory, but importantly, they are then asked a series of questions to identify the role of each substance. This is a very useful way of ensuring that students have understood the details of the reaction rather than just repeating diagrams parrot-fashion. Key words: photosynthesis, light dependent, photosystems, chlorophyll, chloroplasts, thylakoid, stroma, electrons, reduction, oxidation, phosphorylation, ATP, NADP

A resource aimed at advanced biology students, this worksheet is ideal as a starter or plenary recap of the light independent reactions of photosynthesis. The worksheet includes a space for students to draw out the series of light independent reactions from memory, but importantly, they are then asked a series of questions to identify the role of each substance. This is a very useful way of ensuring that students have understood the details of the reaction rather than just repeating diagrams parrot-fashion. Key words: photosynthesis, light independent, photosystems, chlorophyll, chloroplasts, thylakoid, stroma, electrons, reduction, oxidation, phosphorylation, ATP, NADP, RUBP, G3P, TP, RUBISCO, Calvin cycle

A worksheet that recaps the basics of monohybrid cross diagrams using a (hypothetical) pink sheepdog as an example! The worksheet provides a template for students to organise and lay out their work clearly and finsihes with a challenge question requiring students to explain why predicted ratios do not necessarily match actual ratios. Key words: monohybrid, test, back, cross, predicted, inheritance, dominant, recessive

A resource aimed at advanced biology students, this worksheet links topics on osmosis and transpiration. The worksheet begins with a recap of basic knowledge related to osmosis, predicting water movement between cells through use of their water potential values. The worksheet then moves on to consider water potential gradients that exist through an entire plant followed by the structure (as seen in longitudinal and transverse section) of roots. Key words: osmosis, water potential, apoplast, symplast, cell wall, casparian strip, active transport, minerals, epidermis, endodermis, root hair cells, cortex, xylem, transpiration

A worksheet aimed at advanced biology students, this resource provides a series of questions to recap the basic microscopic structure of muscle fibres and their arrangement. Key words: Muscle, fibre, myofibril, contraction, actin, myosin, A-band, I-band, H-zone

A resource aimed at advanced level biology students who have just studied a topic on mitosis, this worksheet consolidates understanding by asking students to consider how the quantity of DNA in cells changes at different points during the cell cycle. The resource checks that students understand the difference between somatic cells and gametes, and whether they can visualise the appearance of chromosomes and hence the quantity of DNA present at different stages of cell division. Key words: mitosis, chromosomes, division, somatic, gametes, cell cycle, S phase, G1 phase, G2 phase, prophase, metaphase, anaphase, telophase, interphase

A resource aimed at high ability GCSE or advanced level biology/applied science/health and social care students, this worksheet provides a useful comprehension task for students to gain an understanding of the nature of x-rays, their use in diagnosis and their relative advantages and disadvantages. Key words: x-rays, contrast media, hazard, radiation

A worksheet that can be used as a starter or plenary after the first lesson on A-Level Biology carbohydrates. Two different versions of the worksheet are provided with slight differentiation on the factual recall of alpha glucose structure. Keywords: alpha glucose, maltose, condensation, hydroxyl, functional group, monosaccharide

A worksheet that would serve as a useful summary of the main points regarding polymers of alpha glucose. The worksheet covers the formation of amylose, amylopectin and glycogen. It is suitable for A-Level students of biology. Key words: glycogen, glucose, alpha glucose, polymer, polysaccharide, glycosidic, condensation, hydrolysis

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 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.