IAL Edexcel Biology - Year 12 1.9 - (i) Understand the role of haemoglobin in the transport of oxygen and carbon dioxide 1.9 - (ii) Understand the oxygen dissociation curve of haemoglobin, the Bohr effect and the significance of the oxygen affinity of fetal haemoglobin compared with adult haemoglobin Presentation on oxygen-dissociation curve. PEQ with mark scheme included in presentation. **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) 2.47 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) 2.59 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 2.6 - (i) Know the basic structure of an amino acid. 2.6 - Understand the formation of polypeptides and proteins (amino acid monomers linked by condensation reactions to form peptide bonds) Presentation on structure of amino acids. PEQ with mark scheme included. **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 (ii) Know the differences between saturated and unsaturated lipids Fats, oils, and ester bonds. Descriptions included of types of fats. Exam questions included from SaveMyExams. Please email pcostello.nba@gmail.com for temporary use of account. **Any and all feedback is very much 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) 2.23 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 on rate of photosynthesis from varying light intensity. Includes practical sheet, revision activity (with mark scheme), and practice exam questions and answer sheet. Any and all feedback 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

Revision booklet for 2018 IAL biology specification for unit one. Booklet contains a specification checklist, a sampling of past paper questions for each topic across topic one and topic two in unit one, and a mark scheme to follow the questions. A glossary and exam question taxonomy 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.

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) 2.46 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

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) 2.20 understand how varying carbon dioxide concentration, light intensity and temperature affect the rate of photosynthesis Lesson on limiting factors for photosynthesis, including practice exam questions with marking scheme. *Any and all feedback appreciated

IGCSE (Edexcel) Biology (9-1) 2.63B understand how vaccination results in the manufacture of memory cells, which enable future antibody production to the pathogen to occur sooner, faster and in greater quantity Lesson on vaccination and immunity, with storyboard activity and practice exam questions (mark scheme included). Additional content for COVID-19 vaccine development (was used as part of Medical Club in school as an ECA). Any and all feedback appreciated