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Revision help links for Edexcel GCSE Combined Science biology PAPER 2
Revision summary help for the 9-1 Edexcel GCSE Combined Science 2nd biology exam paper 2 - learning objectives for exam paper Edexcel GCSE science 1SC0 2BF and 1SCO 2BH 2020 exam paper onwards (re-edit) Edexcel GCSE Grade 9-1 Combined Science 1SC0 Paper 2 Biology 2 - Edexcel Grade 9-1 GCSE Combined Science biology Topic 1 "Key concepts in biology", Topic 6 "Plant structures and their functions", Topic 7 "Animal coordination, control and homeostasis", Topic 8 "Exchange and transport in animals", Topic 9 "Ecosystems and material cycles" LINK for Edexcel 9-1 GCSE Combined Science 1st biology paper 1 LINK for Edexcel 9-1 GCSE BIOLOGY 1 paper 1 LINK for Edexcel 9-1 GCSE BIOLOGY 2 paper 2 This is a BIG website, you need to take time to explore it [SEARCH BOX] Use your mobile phone in 'landscape' orientation email doc brown - query? or comment? For ALL other exam papers, use and bookmark the link below PLEASE READ CAREFULLY THE FOLLOWING POINTS before using my Edexcel 9-1 GCSE science pages
Syllabus-specification CONTENT INDEX of revision summary notes (revision study notes for Edexcel gcse combined science biology) Note that a B after the learning objective means Edexcel GCSE biology only, NOT for Combined Science biology Revision summaries for Edexcel 9-1 GCSE Combined Science Paper 1 Biology 1 (separate page)
SUMMARY Topic 1 – Key concepts in biology (Edexcel GCSE Combined Science Biology 1 paper 1) SUMMARY Topic 2 – Cells and control (Edexcel GCSE Combined Science Biology 1 paper 1) SUMMARY Topic 3 – Genetics (Edexcel GCSE Combined Science Biology 1 paper 1) Revision summaries for Edexcel 9-1 GCSE Combined Science Paper 2 Biology 2 (this page)
SUMMARY Topic 1 – Key concepts in biology (Edexcel Combined Science Biology 2 paper 2) SUMMARY Topic 6 – Plant structures and their functions (Edexcel Combined Science Biology 2 paper 2) SUMMARY Topic 7 – Animal coordination, control and homeostasis (Edexcel Combined Science Biology 2) SUMMARY Topic 8 – Exchange and transport in animals (Edexcel Combined Science Biology 2 paper 2) SUMMARY Topic 9 – Ecosystems and material cycles (Edexcel Combined Science biology 2 Paper 2) SUBJECT CONTENT of the syllabus-specification: (HT only) means higher tier only (NOT FT foundation tier biology) TOPICS for Edexcel GCSE Combined Science Paper 2 Biology 2 Note: a B after the learning objective number indicates it is for Edexcel GCSE Biology ONLY, NOT for Combined Science Topic 1 Key concepts in biology (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 2 biology 2, Topic 1 "Key concepts in biology") (Topic 1 – Overarching concepts in biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 2 biology 2, Topic 1 "Key concepts in biology") You should be able to .... 1.1 Be able to explain how the sub-cellular structures of eukaryotic and prokaryotic cells are related to their functions, including:
Introduction to plant and animal cell structure and function Stem cells and medical uses, and introduction to cell differentiation and specialisation 1.2 Be able to describe how specialised cells are adapted to their function, including:
Introduction to cell specialisation 1.3 Be able to explain how changes in microscope technology, including electron microscopy, have enabled us to see cell structures with more clarity and detail than in the past and increased our understanding of the role of sub-cellular structures Microscopy - the development and use of microscopes in biology 1.4 Demonstrate an understanding of size and scale in relation to microscopy, including magnification calculations. Microscopy - the development and use of microscopes in biology 1.5 Demonstrate an understanding of the relationship between quantitative units in relation to cells, including:
1.6 Core Practical: You should have investigated biological specimens using microscopes, including magnification calculations and labelled scientific drawings from observations. Microscopy - the development and use of microscopes in biology 1.7 Be able to explain the mechanism of enzyme action including the active site and enzyme specificity 1.8 Be able to explain how enzymes can be denatured due to changes in the shape of the active site 1.9 Be able to explain the effects of temperature, substrate concentration and pH on enzyme. 1.10 Core Practical: You should have investigated the effect of pH on enzyme activity 1.11 Be able to demonstrate an understanding of rate calculations for enzyme activity 1.12 Be able to explain the importance of enzymes as biological catalysts in the synthesis of carbohydrates, proteins and lipids and their breakdown into sugars, amino acids and fatty acids and glycerol ENZYMES - structure, function, optimum conditions, investigation experiments See also Enzymes and Biotechnology 1.15 Be able to explain how substances are transported by diffusion, osmosis and active transport 1.16 Core practical: You should have investigated osmosis in potatoes Diffusion, osmosis and active transport 1.17 Be able to calculate percentage gain and loss of mass in osmosis Diffusion, osmosis and active transport Practicals you may have encountered and should revise too:
ENZYMES - structure, function, optimum conditions, investigation experiments
The other TOPICS for Edexcel GCSE Combined Science Biology PAPER 2 (revision study notes for Edexcel gcse combined science biology) Topic 6 Plant structures and their functions (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 2 biology 2, Topic 6 "Plant structures and their functions") You should be able to .... 6.1 Be able to describe photosynthetic organisms as the main producers of food and therefore biomass 6.2 Be able to describe photosynthesis in plants and algae as an endothermic reaction that uses light energy to react carbon dioxide and water to produce glucose and oxygen 6.3 Be able to explain the effect of temperature, light intensity and carbon dioxide concentration as limiting factors on the rate of photosynthesis 6.4 (HT only) Be able to explain the interactions of temperature, light intensity and carbon dioxide concentration in limiting the rate of photosynthesis 6.5 Revise investigating the effect of light intensity on the rate of photosynthesis 6.6 (HT only) Be able to explain how the rate of photosynthesis is directly proportional to light intensity and inversely proportional to the distance from a light source, including the use of the inverse square law calculation 6.7 Be able to explain how the structure of the root hair cells is adapted to absorb water and mineral ions Photosynthesis, importance explained, limiting factors affecting rate, leaf adaptations 6.8 Be able to explain how the structures of the xylem and phloem are adapted to their function in the plant, including:
6.9 Be able to describe how water and mineral ions are transported through the plant by transpiration, including the structure and function of the stomata 6.10 Be able to describe how sucrose is transported around the plant by translocation 6.12 Be able to explain the effect of environmental factors on the rate of water uptake by a plant, to include light intensity, air movement and temperature 6.13 Demonstrate an understanding of rate calculations for transpiration Suggested practicals to revise too:
Topic 7 Animal coordination, control and homeostasis (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 2 biology 2, Topic 7 "Animal coordination, control and homeostasis") You should be able to .... 7.1 Be able to describe where hormones are produced and how they are transported from endocrine glands to their target organs including the pituitary gland, thyroid gland, pancreas, adrenal glands, ovaries and testes Hormone systems - Introduction to the endocrine system - adrenaline & thyroxine hormones 7.2 (HT only) Be able to explain that adrenalin is produced by the adrenal glands to prepare the body for fight or flight, including:
Hormone systems - Introduction to the endocrine system - adrenaline & thyroxine hormones 7.3 (HT only) Be able to explain how thyroxine controls metabolic rate as an example of negative feedback, including:
Hormone systems - Introduction to the endocrine system - adrenaline & thyroxine hormones 7.4 Be able to describe the stages of the menstrual cycle, including the roles of the hormones oestrogen and progesterone, in the control of the menstrual cycle. 7.5 (HT only) Be able to explain the interactions of oestrogen, progesterone, FSH and LH in the control of the menstrual cycle, including the repair and maintenance of the uterus wall, ovulation and menstruation Hormone Systems - menstrual cycle 7.6 Be able to explain how hormonal contraception influences the menstrual cycle and prevents pregnancy 7.7 Be able to compare and evaluate hormonal and barrier methods of contraception 7.8 (HT only) Be able to explain the use of hormones in Assisted Reproductive Technology (ART) including IVF and clomifene therapy Hormone systems - menstrual cycle, contraception, fertility treatments 7.9 Be able to explain the importance of maintaining a constant internal environment in response to internal and external change Homeostasis - introduction to how it functions (negative feedback systems explained) 7.13 Be able to explain how blood glucose concentration is regulated by the hormone insulin Homeostasis - control of blood sugar level - insulin and diabetes 7.14 (HT only) Be able to explain how blood glucose concentration is regulated by glucagon Homeostasis - control of blood sugar level - insulin and diabetes 7.15 Be able to explain the cause of type 1 diabetes and how it is controlled 7.16 Be able to explain the cause of type 2 diabetes and how it is controlled 7.17 Evaluate the correlation between body mass and type 2 diabetes including waist : hip ratio calculations and BMI using the BMI equation:
Practical done - investigation of the presence of sugar in simulated urine/body fluids. Homeostasis - control of blood sugar level - insulin and diabetes Food tests for reducing sugars, starch, proteins and lipids (fats and oils) Topic 8 Exchange and transport in animals (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 2 biology 2, Topic 8 "Exchange and transport in animals") You should be able to .... 8.1 Be able to describe the need to transport substances into and out of a range of organisms including oxygen, carbon dioxide, water, dissolved food molecules, mineral ions and urea 8.2 Be able to explain the need for exchange surfaces and a transport system in multicellular organisms including the calculation of surface area : volume ratio (usually with a simple cube model). 8.3 Be able to describe how alveoli are adapted for gas exchange by diffusion between air in the lungs and blood in capillaries Diffusion, osmosis and active transport Examples of surfaces for the exchange of substances in animal organisms 8.6 Be able to explain how the structure of the blood is related to its function:
8.7 Be able to explain how the structure of the blood vessels is related to their function 8.8 Be able to explain how the structure of the heart and circulatory system is related to its function, including the role of the major blood vessels, the valves and the relative thickness of chamber walls 8.9 Be able to describe cellular respiration as an exothermic reaction which occurs continuously in living cells to release energy for metabolic processes, including aerobic and anaerobic respiration 8.10 Be able to compare the process of aerobic respiration with the process of anaerobic respiration Respiration - aerobic and anaerobic in plants and animals 8.11 Investigation into the rate of respiration in living organisms Respiration - aerobic and anaerobic in plants and animals 8.12 Calculate heart rate, stroke volume and cardiac output, using the equation:
Suggested practicals to revise:
Respiration - aerobic and anaerobic in plants and animals, investigations Topic 9 Ecosystems and material cycles (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 2 biology 2, Topic 9 "Ecosystems and materials") Notes for 9.1 to 9.15 (revision study notes for Edexcel gcse combined science biology) Carbon cycle, nitrogen cycle, water cycle, decomposition - decay investigation, biogas Ecosystems - biotic & abiotic factors - interactions between organisms - interdependency Food chains, food webs, trophic levels and biomass Adaptations, lots of examples explained including extremophiles Food security - population growth and sustainability issues Biodiversity and ecological surveying - using quadrats and transects Biodiversity, land management, waste management, maintaining ecosystems - conservation (Exam revision summary for Edexcel GCSE 9-1 combined science paper 2 biology 2, Topic 9 "Ecosystems and materials") You should be able to .... 9.1 Be able to describe the different levels of organisation from individual organisms, populations, communities, to the whole ecosystem 9.2 Be able to explain how communities can be affected by abiotic and biotic factors, including:
9.3 Be able to describe the importance of interdependence in a community 9.4 Be able to describe how the survival of some organisms is dependent on other species, including parasitism and mutualism 9.5 Investigate the relationship between organisms and their environment using field work techniques including quadrats and belt transects 9.6 Be able to explain how to determine the number of organisms in a given area using raw data from field-work techniques, including quadrats and belt transects 9.9 Be able to explain the positive and negative human interactions within ecosystems and their impacts on biodiversity, including:
9.10 Be able to explain the benefits of maintaining local and global biodiversity including the conservation of animal species and the impact of reforestation 9.12 Be able to describe how different materials cycle through the abiotic and biotic components of an ecosystem 9.13 Be able to explain the importance of the carbon cycle including the processes involved and the role of microorganisms as decomposers 9.14 Be able to explain the importance of the water cycle including the processes involved and the production of potable water in areas of drought including desalination 9.15 Be able to explain how nitrates are made available for plant uptake including the use of fertilisers, crop rotation and the role of bacteria in the nitrogen cycle Practicals you may have encountered worth revising
See also revision notes: (revision study notes for Edexcel gcse combined science biology) Carbon cycle, nitrogen cycle, water cycle, decomposition - decay investigation, biogas Ecosystems - biotic & abiotic factors - interactions between organisms - interdependency Food chains, food webs, trophic levels and biomass Adaptations, lots of examples explained including extremophiles Food security - population growth and sustainability issues Biodiversity and ecological surveying - using quadrats and transects Biodiversity, land management, waste management, maintaining ecosystems - conservation ALL EDEXCEL GCSE (Grade 9-1) Level 1/Level 2 SCIENCES specifications and syllabus revision summary links Edexcel GCSE (Grade 9-1) BIOLOGY 1st GCSE BIOLOGY paper 1 (separate science Topics 1-5) Edexcel GCSE (Grade 9-1) Combined Science Biology 1 1st combined science biology paper (Topics 1-5) Edexcel GCSE (Grade 9-1) BIOLOGY 2nd GCSE BIOLOGY paper 2 (separate science Topics 1, 6-9) Edexcel GCSE (Grade 9-1) CHEMISTRY 1st GCSE CHEMISTRY Paper 1 (separate science Topics 1-5) Edexcel GCSE (Grade 9-1) CHEMISTRY 2nd GCSE CHEMISTRY Paper 2 (separate science Topics 1, 6-9) Edexcel GCSE (Grade 9-1) Physics 1st GCSE PHYSICS Paper 1 (separate science Topics 1-8) Edexcel GCSE (Grade 9-1) Combined Science Physics 1st combined science physics paper (Topics 1-6) Edexcel GCSE (Grade 9-1) Physics 2nd GCSE PHYSICS Paper 2 (separate science Topics 1, 8-15) Watch out for HT Only sections AND make sure you know exactly which GCSE science course you are doing! |
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