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

IAL Edexcel Biology - Year 12 2.6 - (iii) Understand the significance of a protein’s primary structure in determining its secondary structure, three-dimensional structure and properties (globular and fibrous proteins and the types of bonds involved in its three-dimensional structure) Presentation on tier of protein structures from primary to tertiary. PEQ with mark scheme included in presentation. **Any and all feedback is very much appreciated. *

IGCSE (Edexcel) Biology (9-1) 2.45B practical: investigate the effect of light on net gas exchange from a leaf, using hydrogen-carbonate indicator Practical lesson on hydrogen-carbonate indicator and the leaf. Includes a practical sheet, and practice exam question with mark scheme. Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.55B understand how water is absorbed by root hair cells 2.56B understand that transpiration is the evaporation of water from the surface of a plant 2.57B understand how the rate of transpiration is affected by changes in humidity, wind speed, temperature and light intensity 2.58B practical: investigate the role of environmental factors in determining the rate of transpiration from a leafy shoot Lesson includes role of root hair cell for absorption (with labels and functions), and transpiration stream with factors affecting rate of transpiration. Practice exam questions included with mark scheme. Any and all feedback 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 1.1 - 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. **

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. **

IAL Edexcel Biology - Year 12 1.2 - (i) Know the difference between monosaccharides, disaccharides and polysaccharides, including glycogen and starch (amylose and amylopectin) 1.2 - (ii) Be able to relate the structures of monosaccharides, disaccharides and polysaccharides to their roles in providing and storing energy Presentation disaccharides. Example practice exam questions (PEQ) with mark scheme included as additional document. **Any and all feedback is very much appreciated. **

Revision booklet for 2018 IAL biology specification for unit two. Booklet contains a specification checklist, a sampling of past paper questions for each topic across topic three and topic four in unit two, and a mark scheme to follow the questions. A mathematical skills checklist from the specification is included for convenience. Year 12’s have used this primarily for homework and for end of topic assessment revision. The booklet represents various questions that students can be asked in the unit one exam, but is not intended to serve as a comprehensive review of every possible question. Students are suplemented with additional past paper questions (from sites like Physics & Maths Tutor, and SaveMyExams) as a result of this.

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. **

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. **

IGCSE (Edexcel 9-1) Biology 2.7 identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils) 2.8 describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units: starch and glycogen from simple sugars, protein from amino acids, and lipid from fatty acids and glycerol 2.9 practical: investigate food samples for the presence of glucose, starch, protein and fat 2.10 understand the role of enzymes as biological catalysts in metabolic reactions Presentations included for biological molecules, and the necessary food tests for the biological molecules topic. Lesson on role of enzymes as catalysts, and stages of enzyme action. 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) 2.23 practical: investigate photosynthesis, showing the evolution of oxygen from a water plant, the production of starch and the requirements of light, carbon dioxide and chlorophyll Practical lesson, including practical sheet, video and printed visual for practical steps, and practice exam question with mark scheme. Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.18 understand the process of photosynthesis and its importance in the conversion of light energy to chemical energy 2.19 know the word equation and the balanced chemical symbol equation for photosynthesis 2.20 understand how varying carbon dioxide concentration, light intensity and temperature affect the rate of photosynthesis 2.42B understand how the structure of the leaf is adapted for gas exchange Recap of photosynthesis from KS3. Introduction to structure of the leaf. Included are labelling activities (with answer sheets), and practice exam questions (PEQ) for a 6-mark answer. 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) 2.59 describe the composition of the blood: red blood cells, white blood cells, platelets and plasma 2.60 understand the role of plasma in the transport of carbon dioxide, digested food, urea, hormones and heat energy 2.61 understand how adaptations of red blood cells make them suitable for the transport of oxygen, including shape, the absence of a nucleus and the presence of haemoglobin Lesson on components of blood, with practice exam questions and mark scheme included. 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. **

IAL Edexcel Biology - Year 12 2.6 - (iv) Know the molecular structure of a globular protein and a fibrous protein and understand how their structures relate to their functions (including haemoglobin and collagen) Presentation on globular protein structures. PEQ with mark scheme included in presentation. **Any and all feedback is very much appreciated. *