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Revision help links for Edexcel GCSE Combined Science biology PAPER 1
Revision summary help for the 9-1 Edexcel GCSE Combined Science 1st biology paper 1 - learning objectives for exam paper Edexcel GCSE science 1SC0 1BF and 1SCO 1BH 2020 exam paper onwards (re-edit) Edexcel GCSE Grade 9-1 Combined Science 1SC0 Paper 1 Biology 1 - Edexcel Grade 9-1 GCSE Combined Science biology Topic 1 "Key concepts in biology", Topic 2 "Cells and control", Topic 3 "Genetics", Topic 4 "Natural selection and genetic modification", Topic 5 "Health, disease and development of medicines" LINK for Edexcel 9-1 GCSE Combined Science 2nd biology paper 2 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 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 (this 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 (separate page)
SUMMARY Topic 1 – Key concepts in biology (Edexcel GCSE Combined Science Biology 2 paper 2) SUMMARY Topic 8 – Exchange and transport in animals (Edexcel GCSE Comb. Science Biology 2 paper 2) SUMMARY Topic 9 – Ecosystems and material cycles (Edexcel GCSE Combined Science Biology paper 2) SUBJECT CONTENT of the syllabus-specification: (HT only) means higher tier only (NOT FT foundation tier biology) TOPICS for Edexcel 9-1 GCSE Combined Science Biology 1 Paper 1 (revision study notes for Edexcel gcse combined science biology) for Edexcel 9-1 GCSE Combined Science Paper 1 Biology 1 (this page) (revision study notes for Edexcel gcse combined science biology) 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 (Topic 1 content is common to all the biology papers) (Topic 1 – Overarching concepts in biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 1 biology 1, 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 Be able to 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 activity. 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 (gcse chemistry notes) 1.15 Be able to explain how substances are transported by diffusion, osmosis and active transport Diffusion, osmosis and active transport 1.16 Core practical: You should have investigated osmosis in potatoes 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
Microscopy - the development and use of microscopes in biology gcse biology revision notes
The other TOPICS for Edexcel GCSE Combined Science Biology PAPER 1 (revision study notes for Edexcel gcse combined science biology) Topic 2 Cells and control (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 1 biology 1, Topic 2 "Cells and control") You should be able to .... 2.1 Be able to describe mitosis as part of the cell cycle including the stages interphase, prophase, metaphase, anaphase and telophase and cytokinesis 2.2 Be able to describe the importance of mitosis in growth, repair and asexual reproduction 2.3 Be able to describe the division of a cell by mitosis as the production of two daughter cells, each with identical sets of chromosomes in the nucleus to the parent cell, and that this results in the formation of two genetically identical diploid body cells 2.4 Be able to describe cancer as the result of changes in cells that lead to uncontrolled cell division CELL DIVISION - cell cycle - mitosis, meiosis and sexual reproduction, binary fission 2.5 Be able to describe growth in organisms, including:
Stem cells and uses, and an introduction to cell differentiation and specialisation Hormone control of plant growth and uses of plant hormones 2.6 Be able to explain the importance of cell differentiation in the development of specialised cells 2.7 Be able to demonstrate an understanding of the use of percentiles charts to monitor growth 2.8 Be able to describe the function of embryonic stem cells, stem cells in animals and meristems in plants 2.9 Discuss the potential benefits and risks associated with the use of stem cells in medicine CELL DIVISION - cell cycle - mitosis and meiosis in sexual reproduction Stem cells and an introduction to cell specialisation 2.13 Be able to explain the structure and function of sensory receptors, sensory neurones, relay neurones in the CNS, motor neurones and synapses in the transmission of electrical impulses, including the axon, dendron, myelin sheath and the role of neurotransmitters 2.14 Be able to explain the structure and function of a reflex arc including sensory, relay and motor neurones An introduction to the nervous system including the reflex arc Practicals you may have encountered
Topic 3 Genetics (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 1 biology 1, Topic 3 "Genetics") You should be able to .... 3.3 Be able to explain the role of meiotic cell division, including the production of four daughter cells, each with half the number of chromosomes, and that this results in the formation of genetically different haploid gametes.
CELL DIVISION - cell cycle - mitosis, meiosis and sexual/asexual reproduction, binary fission 3.4 Be able to describe DNA as a polymer made up of:
DNA structure and Protein Synthesis 3.5 Be able to describe the genome as the entire DNA of an organism and a gene as a section of a DNA molecule that codes for a specific protein 3.6 Be able to explain how to extract DNA from fruit 3.12 Be able to explain why there are differences in the inherited characteristics as a result of alleles 3.13 Be able to explain the terms: chromosome, gene, allele, dominant, recessive, homozygous, heterozygous, genotype, phenotype, gamete and zygote DNA and RNA structure and Protein Synthesis and an experiment to extract DNA 3.14 Be able to explain monohybrid inheritance using genetic diagrams, Punnett squares and family pedigrees. 3.15 Be able to describe how the sex of offspring is determined at fertilisation, using genetic diagrams Inherited characteristics and human sexual reproduction, genetic fingerprinting and its uses 3.16 Be able to calculate and analyse outcomes (using probabilities, ratios and percentages) from monohybrid crosses and pedigree analysis for dominant and recessive traits. 3.19 Be able to state that most phenotypic features are the result of multiple genes rather than single gene inheritance. 3.20 Be able to describe the causes of variation that influence phenotype, including:
3.21 Discuss the outcomes of the Human Genome Project and its potential applications within medicine 3.22 Be able to state that there is usually extensive genetic variation within a population of a species and that these arise through mutations 3.23 Be able to state that most genetic mutations have no effect on the phenotype, some mutations have a small effect on the phenotype and, rarely, a single mutation will significantly affect the phenotype An introduction to genetic variation and the formation and consequence of mutations Practicals you may have done
Topic 4 Natural selection and genetic modification (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 1 biology 1, Topic 4 "Natural selection and genetic modification") You should be able to .... 4.2 Be able to explain Darwin’s theory of evolution by natural selection 4.3 Be able to explain how the emergence of resistant organisms supports Darwin’s theory of evolution including antibiotic resistance in bacteria 4.4 Be able to describe the evidence for human evolution, based on fossils, including:
4.5 Be able to describe the evidence for human evolution based on stone tools, including:
4.7 Be able to describe how genetic analysis has led to the suggestion of the three domains rather than the five kingdoms classification method 4.8 Be able to explain selective breeding and its impact on food plants and domesticated animals 4.10 Be able to describe genetic engineering as a process which involves modifying the genome of an organism to introduce desirable characteristics 4.11 (HT only) Be able to describe the main stages of genetic engineering including the use of:
4.14 Evaluate the benefits and risks of genetic engineering and selective breeding in modern agriculture and medicine including practical and ethical implications Genetic engineering: uses - making insulin, medical applications, GM crops and food security Cloning - tissue culture of plants and animals, uses of cloning techniques Topic 5 Health, disease and the development of medicines (revision study notes for Edexcel gcse combined science biology) (Exam revision summary for Edexcel GCSE 9-1 combined science paper 1 biology 1, Topic 5 "Health, disease and the development of medicines") You should be able to .... 5.1 Be able to describe health as a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity, as defined by the World Health Organisation (WHO) 5.2 Be able to describe the difference between communicable and noncommunicable diseases 5.3 Be able to explain why the presence of one disease can lead to a higher susceptibility to other diseases 5.4 Be able to describe a pathogen as a disease-causing organism including viruses, bacteria, fungi and protists Keeping healthy - communicable diseases - pathogen infections Keeping healthy - non-communicable diseases - risk factors for e.g. cancers 5.5 Be able to describe some common infections, including:
Plant diseases and defences against pathogens and pests
Keeping healthy - communicable diseases - pathogen infections 5.6 Be able to explain how pathogens are spread and how this spread can be reduced or prevented, including:
Keeping healthy - communicable diseases - pathogen infections Plant diseases and defences against pathogens and pests 5.8 Be able to explain how sexually transmitted infections (STIs) are spread and how this spread can be reduced or prevented, including:
Keeping healthy - communicable diseases - pathogen infections 5.12 Be able to describe how the physical barriers and chemical defences of the human body provide protection from pathogens, including:
5.13 Be able to explain the role of the specific immune system of the human body in defence against disease, including:
Keeping Healthy - How do our bodies defend themselves against infectious diseases? 5.14 Be able to explain the body’s response to immunisation using an inactive form of a pathogen 5.16 Be able to explain that antibiotics can only be used to treat bacterial infections because they inhibit cell processes in the bacterium but not the host organism 5.20 Be able to describe that the process of developing new medicines, including antibiotics, has many stages including discovery, development, preclinical and clinical testing Keeping Healthy - How do our bodies defend themselves against infectious diseases? 5.23 Be able to describe that many non-communicable human diseases are caused by the interaction of a number of factors including cardiovascular diseases, many forms of cancer, some lung and liver diseases and diseases influenced by nutrition Keeping healthy - non-communicable diseases - risk factors for e.g. CVD, cancers Homeostasis - control of blood sugar level - insulin and diabetes 5.24 Be able to explain the effect of lifestyle factors on non-communicable diseases at local, national and global levels, including:
Keeping healthy - diet and exercise, body/mass/hip indexes 5.25 Be able to evaluate some different treatments for cardiovascular disease, including:
Keeping healthy - diet and exercise, body/mass/hip indexes Practicals you may have encountered
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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