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 monosaccharides. Example practice exam questions (PEQ) with mark scheme included.
**Any and all feedback is very much appreciated. **
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. *
IAL Edexcel Biology - Year 12
All lesson for biological molecules for unit 1 for IAL Biology (Edexcel).
1.1 understand the importance of water as a solvent in transport, including its dipole nature
1.2 (i) know the difference between monosaccharides, disaccharides and polysaccharides, including glycogen and starch (amylose and amylopectin)
(ii) be able to relate the structures of monosaccharides, disaccharides and polysaccharides to their roles in providing and storing energy β-glucose and cellulose are not required in this topic.
1.3 CORE PRACTICAL 1 Use a semi-quantitative method with Benedict’s reagent to estimate the concentrations of reducing sugars and with iodine solution to estimate the concentrations of starch, using colour standards.
1.4 know how monosaccharides (glucose, fructose and galactose) join together to form disaccharides (maltose, sucrose and lactose) and polysaccharides (glycogen, amylose and amylopectin) through condensation reactions forming glycosidic bonds, and how these can be split through hydrolysis reactions
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
2.6 (i) know the basic structure of an amino acid Structures of specific amino acids are not required.
(ii) understand the formation of polypeptides and proteins (amino acid monomers linked by condensation reactions to form peptide bonds)
(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)
(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)
Presentations for each lesson inlcuded. PEQ included in presentations with mark schemes included.
Any and all feedback much 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)
2.23 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
2.1 describe the levels of organisation in organisms: organelles, cells, tissues, organs and systems
1.2, 2.2 to 2.4 Specialised cells commonly included within these specification points
Presentations included with AfL tasks. Answers for tasks within presentations.
Any and all feedback appreciated
IGCSE (Edexcel 9-1) Biology
1.2 describe the common features shown by eukaryotic organisms: plants, animals, fungi and protoctists
1.3 describe the common features shown by prokaryotic organisms such as bacteria
1.4 understand the term pathogen and know that pathogens may include fungi, bacteria, protoctists or viruses
Presentations included for four lessons. Each focused on classification types, with sample exam questions included.
Free additional revision lesson included.
Any and all feedback appreciated
IGCSE (Edexcel) Biology (9-1)
2.24 understand that a balanced diet should include appropriate proportions of
carbohydrate, protein, lipid, vitamins, minerals, water and dietary fibre
2.25 identify the sources and describe the functions of carbohydrate, protein, lipid (fats and oils), vitamins A, C and D, the mineral ions calcium and iron, water and dietary fibre as components of the diet
2.26 understand how energy requirements vary with activity levels, age and pregnancy
Presentations on nutrient groups outlined in 2.24 and 2.25. Energy requirements lesson with practice exam questions adnd mark scheme included.
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)
2.20 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