IAL Biology (Edexcel) - Unit 1 (Topic 2) FREE RESOURCES Link to more resources like this can be found at - https://www.tes.com/teaching-resources/shop/pcostello_nba 2.9 (i), (ii) - Know the basic structure of mononucleotides (deoxyribose or ribose linked to a phosphate and a base, including thymine, uracil, adenine, cytosine or guanine) and the structures of DNA and RNA (polynucleotides composed of mononucleotides linked by condensation reactions to form phosphodiester bonds) Know how complementary base pairing and the hydrogen bonding between two complementary strands are involved in the formation of the DNA double helix Introduction to the structure of DNA as in 2.9 (i). Includes the following: Steps to draw pentose sugar, phosphate group (with phosphoester bonding), and nitrogenous base Different purines and pyramidines Complimentary base bairing Polynucelotide formation Practice exam questions (PEQ) **Any and all feedback is more than welcome. **

IGCSE (Edexcel) Biology (9-1) 2.34 understand how the process of respiration produces ATP in living organisms 2.35 know that ATP provides energy for cells 2.36 describe the differences between aerobic and anaerobic respiration Free lesson on contrast between aerobic and anaerobic respiration, and the role of ATP, including worksheets (within presentation), and practice exam questions with mark schemes. Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.49 understand the biological consequences of smoking in relation to the lungs and the circulatory system, including coronary heart disease 2.50 practical: investigate breathing in humans, including the release of carbon dioxide and the effect of exercise** Practical guidelines on calculating breathing rate. Presentation on the effects of smoking, covering wide range of previous question topics. Model answers, and past paper questions and mark schemes contained. Any and all feedback appreciated

IAL Edexcel Biology - Year 12 1.13 - Understand the link between dietary antioxidants and the risk of cardiovascular disease (CVD) 1.19 - Understand how people use scientific knowledge about the effect of diet, including obesity indicators, such as body mass index and waist-to-hip ratio, exercise and smoking to reduce their risk of coronary heart disease 1.20 - Know the benefits and risks of treatments for cardiovascular disease (CVD) (antihypertensives, statins, anticoagulants and platelet inhibitors) Presentation covering risk factor attribution to CHD. Included is an information hunt for CVD treatments including focus on practice exam questions (PEQ). **Any and all feedback is very much appreciated. **

IAL Edexcel Biology - Year 12 1.12 - Know how factors such as genetics, diet, age, gender, high blood pressure, smoking and inactivity increase the risk of cardiovascular disease (CVD) 1.15 - Be able to analyse and interpret quantitative data on illness and mortality rates to determine health risks, including distinguishing between correlation and causation and recognising conflicting evidence 1.16 - Be able to evaluate the design of studies used to determine health risk factors, including sample selection and sample size used to collect data that is both valid and reliable Risk factors, evaluation of studies, and application of CRAAP system using practice exam practice (PEQ). **Any and all feedback is very much appreciated. **

IAL Edexcel Biology - Year 12 1.1 - Understand the importance of water as a solvent in transport, including its dipole nature Properties of water and polarity of water including exam questions (in presentations). Additional worksheet to accompany lessons. Used in class for flipped lesson learning and self-study. **Any and all feedback is very much appreciated. **

IGCSE (Edexcel) Biology 1.1 understand how living organisms share the following characteristics: • they require nutrition • they respire • they excrete their waste • they respond to their surroundings • they move • they control their internal conditions • they reproduce • they grow and develop 2.2 describe cell structures, including the nucleus, cytoplasm, cell membrane, cell wall, mitochondria, chloroplasts, ribosomes and vacuole 2.3 describe the functions of the nucleus, cytoplasm, cell membrane, cell wall, mitochondria, chloroplasts, ribosomes and vacuole 2.4 know the similarities and differences in the structure of plant and animal cells Presentations included for whole lesson. Sample exam questions included in presentations with mark schemes. Any and all feedback is appreciated

IGCSE (Edexcel) Biology (9-1) 2.65 describe the structure of the heart and how it functions 2.66 explain how the heart rate changes during exercise and under the influence of adrenaline 2.67 understand how factors may increase the risk of developing coronary heart disease 2.68 understand how the structure of arteries, veins and capillaries relate to their function Lessons on cardiac structure and cycle, with additionals for heart dissection (with link and practical sheet), and second lesson on valves and CHD. Practice exam questions and mark schemes included throughout. Link for Dissection - https://www.youtube.com/watch?v=WBwPhWAP394 Any and all feedback appreciated

IAL Edexcel Biology - Year 12 1.10 - Understand the course of events that leads to atherosclerosis (endothelial dysfunction, inflammatory response, plaque formation, raised blood pressure) Stages of atherosclerosis with project on topic included. Practice exam questions for exam context and QR codes to bring to biodigital representations of effects of condition. **Any and all feedback is very much appreciated. **

IGCSE (Edexcel) Biology (9-1) 2.39 practical: investigate the evolution of carbon dioxide and heat from respiring seeds or other suitable living organisms Lessons on core practicals for investigating respiration. There is a virtual practical for investigating respiration using germinating seeds. These lessons are to support the practical, and include practice exam paper questions with mark schemes. Any and all feedback appreciated

IAL Edexcel Biology - Year 12 1.6 - Understand why many animals have a heart and circulation (mass transport to overcome the limitations of diffusion in meeting the requirements of organisms) 1.7 - Understand how the structures of blood vessels (capillaries, arteries and veins) relate to their functions 1.11 - Understand the blood clotting process (thromboplastin release, conversion of prothrombin to thrombin and fibrinogen to fibrin) and its role in cardiovascular disease (CVD) Two presentations included. Mass transport and SA:VOL orientated towards answers from past paper questions. Blood vessels and clotting contain worksheets in presentations, and PEQ (practice exam questions) for both sets of specficiation points. **Any and all feedback is very much appreciated. **

IGCSE (Edexcel) Biology (9-1) 2.66 explain how the heart rate changes during exercise and under the influence of adrenaline 2.69 understand the general structure of the circulation system, including the blood vessels to and from the heart and lungs, liver and kidneys Lessons including role of adrenaline, contrasting the three primary types of blood vessels, and a lesson on systemic circulation (including single and double-circulation). All sections include past paper practice with mark schemes included. Any and all feedback appreciated

IAL Edexcel Biology - Year 12 1.8 - Know the cardiac cycle (atrial systole, ventricular systole and cardiac diastole) and relate the structure and operation of the mammalian heart, including the major blood vessels, to its function Structure of the heart and cardiac cycle. Included are keywords glossary and practice exam questions (PEQ). **Any and all feedback is very much appreciated. **

IGCSE (Edexcel 9-1) Biology 2.11 understand how temperature changes can affect enzyme function, including changes to the shape of active site 2.12 practical: investigate how enzyme activity can be affected by changes in temperature 2.13 understand how enzyme function can be affected by changes in pH altering the active site 2.14B practical: investigate how enzyme activity can be affected by changes in pH Presentations included for factors affecting enzyme action. Core practical lab sheet with review lesson included. Amylase used as catalyst for breakdown of starch in practicals. Exam questions included for practice, with mark schemes available at the end of the exam question documents. Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.48 explain how alveoli are adapted for gas exchange by diffusion between air in the lungs and blood in capillaries Lesson on the adaptations of the gas exchange, including the stated adaptations for the curriculum for the alveoli, and practice on emphisema as per previous past papers. Worksheets (included in presentation) and past paper questions with mark schemes included. Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.47 understand the role of the intercostal muscles and the diaphragm in ventilation Two lessons. First lesson is on ventilation, including the role of the intercostal muscles and diaphragm in inhalation and exhalation. The second lesson is support materials and resources for the lung dissection practical, using a support video as a guide throughout the practical. Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.27 describe the structure and function of the human alimentary canal, including the mouth, oesophagus, stomach, small intestine (duodenum and ileum), large intestine (colon and rectum) and pancreas 2.28 understand how food is moved through the gut by peristalsis 2.29 understand the role of digestive enzymes, including the digestion of starch to glucose by amylase and maltase, the digestion of proteins to amino acids by proteases and the digestion of lipids to fatty acids and glycerol by lipases 2.30 understand that bile is produced by the liver and stored in the gall bladder 2.31 understand the role of bile in neutralising stomach acid and emulsifying lipids 2.32 understand how the small intestine is adapted for absorption, including the structure of a villus Two-lesson presentation on digestive system / alimentary canal. Exam questions within presentation (and marking schemes). Additional questions included in resource. Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.46 describe the structure of the thorax, including the ribs, intercostal muscles, diaphragm, trachea, bronchi, bronchioles, alveoli and pleural membranes Lesson on the strucure of the respiratory system, including worksheets on labels and functions, and practice exam questions with mark schemes throughout. Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.62 understand how the immune system responds to disease using white blood cells, illustrated by phagocytes ingesting pathogens and lymphocytes releasing antibodies specific to the pathogen Lesson on white blood cells and immune response. Contains scaffolded long question (with mark scheme), and additional AfL activities for this common area in the bio paper. Any and all feedback appreciated

IAL Edexcel Biology - Year 12 1.5 - (i) Know how a triglyceride is synthesised by the formation of ester bonds during condensation reactions between glycerol and three fatty acids 1.5 - (ii) Know the differences between saturated and unsaturated lipids Presentation on lipids and ester bonds. Example practice exam questions (PEQ) with mark scheme included. **Any and all feedback is very much appreciated. **