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. *
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. *
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)
2.45B 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)
2.20 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)
2.62 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
IGCSE (Edexcel) Biology (9-1)
2.22 understand that plants require mineral ions for growth, and that magnesium ions are needed for chlorophyll and nitrate ions are needed for amino acids
Short lesson on mineral ion deficiencies in a plant. Revision activity for L1 to L3 included with mark scheme and answer sheet.
*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)
2.63B 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
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
IGCSE 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
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
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
2.64B understand how platelets are involved in blood clotting, which prevents blood loss and the entry of micro-organisms
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
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 covering aspects of human transport, including blood components, adaptations of red blood cells, immune response, vaccination, cardiac structure and cycle (with heart dissection), CHD, valves, and systemic circulation.
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