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I'm a biology teacher with 10 years experience. I have been selling and publishing my resources online for the last 4 years. I make high quality resources for IGCSE, A Level, Pre-U and the IB. I'm an expert in Flipped Learning and a Head of Digital Learning in my school

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I'm a biology teacher with 10 years experience. I have been selling and publishing my resources online for the last 4 years. I make high quality resources for IGCSE, A Level, Pre-U and the IB. I'm an expert in Flipped Learning and a Head of Digital Learning in my school
IGCSE Biology 9-1 - 2j Coordination and Response - Humans
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IGCSE Biology 9-1 - 2j Coordination and Response - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 2j Coordination and Response - Humans 2.80 understand how organisms are able to respond to changes in their environment 2.81 understand that homeostasis is the maintenance of a constant internal environment, and that body water content and body temperature are both examples of homeostasis 2.82 understand that a co-ordinated response requires a stimulus, a receptor and an effector 2.86 describe how nervous and hormonal communication control responses and understand the differences between the two systems 2.87 understand that the central nervous system consists of the brain and spinal cord and is linked to sense organs by nerves 2.88 understand that stimulation of receptors in the sense organs sends electrical impulses along nerves into and out of the central nervous system, resulting in rapid responses 2.89 understand the role of neurotransmitters at synapses 2.90 describe the structure and functioning of a simple reflex arc illustrated by the withdrawal of a finger from a hot object 2.91 describe the structure and function of the eye as a receptor 2.92 understand the function of the eye in focusing on near and distant objects, and in responding to changes in light intensity 2.93 describe the role of the skin in temperature regulation, with reference to sweating, vasoconstriction and vasodilation 2.94 understand the sources, roles and effects of the following hormones: adrenaline, insulin, testosterone, progesterone and oestrogen 2.95B understand the sources, roles and effects of the following hormones: ADH, FSH and LH The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
IGCSE Biology 9-1 - 2h Transport - Humans
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IGCSE Biology 9-1 - 2h Transport - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - 2h Transport - Humans 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. The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com View the YouTube lessons for this presentation here: https://youtu.be/kuoMTGgKjIU
IGCSE Biology 9-1 - 4d Human influences on the environment
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IGCSE Biology 9-1 - 4d Human influences on the environment

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 4d Human influences on the environment 4.12 understand the biological consequences of pollution of air by sulfur dioxide and carbon monoxide 4.13 understand that water vapour, carbon dioxide, nitrous oxide, methane and CFCs are greenhouse gases 4.14 understand how human activities contribute to greenhouse gases 4.15 understand how an increase in greenhouse gases results in an enhanced greenhouse effect and that this may lead to global warming and its consequences 4.16 understand the biological consequences of pollution of water by sewage 4.17 understand the biological consequences of eutrophication caused by leached minerals from fertiliser 4.18B understand the effects of deforestation, including leaching, soil erosion, disturbance of evapotranspiration and the carbon cycle, and the balance of atmospheric gases The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
IGCSE Biology 9-1 - 3b Inheritance - DNA and Genes
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IGCSE Biology 9-1 - 3b Inheritance - DNA and Genes

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 3b Inheritance - DNA and Genes 3.14 understand that the genome is the entire DNA of an organism and that a gene is a section of a molecule of DNA that codes for a specific protein 3.15 understand that the nucleus of a cell contains chromosomes on which genes are located 3.16B describe a DNA molecule as two strands coiled to form a double helix, the strands being linked by a series of paired bases: adenine (A) with thymine (T), and cytosine © with guanine (G) 3.17B understand that an RNA molecule is single stranded and contains uracil (U) instead of thymine (T) 3.18B describe the stages of protein synthesis including transcription andtranslation, including the role of mRNA, ribosomes, tRNA, codons and anticodons The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
Factors affecting gene expression presentation
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Factors affecting gene expression presentation

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PowerPoint for topic 7.2 Factors affecting gene expression of A Level Biology Edexcel B i Know that transcription factors are proteins that bind to DNA. ii Understand the role of transcription factors in regulating gene expression. iii Understand how post–transcription modification of mRNA in eukaryotic cells (RNA splicing) can result in different products from a single gene. iv Understand that gene expression can be changed by epigenetic modification, including non-coding RNA, histone modification and DNA methylation. v Know that epigenetic modification is important in ensuring cell differentiation.
IGCSE Biology 9-1 - 3a Reproduction - Humans
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IGCSE Biology 9-1 - 3a Reproduction - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 3a Reproduction - Humans 3.8 understand how the structure of the male and female reproductive systems are adapted for their functions 3.9 understand the roles of oestrogen and progesterone in the menstrual cycle 3.10B understand the roles of FSH and LH in the menstrual cycle 3.11 describe the role of the placenta in the nutrition of the developing embryo 3.12 understand how the developing embryo is protected by amniotic fluid 3.13 understand the roles of oestrogen and testosterone in the development of secondary sexual characteristics The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
IGCSE Biology 9-1 - 3b Inheritance - Variation and Mutation
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IGCSE Biology 9-1 - 3b Inheritance - Variation and Mutation

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 3b Inheritance - Variation and Mutation 3.33 understand that variation within a species can be genetic, environmental, or a combination of both 3.34 understand that mutation is a rare, random change in genetic material that can be inherited 3.35B understand how a change in DNA can affect the phenotype by altering the sequence of amino acids in a protein 3.36B understand how most genetic mutations have no effect on the phenotype, some have a small effect and rarely do they have a significant effect 3.37B understand that the incidence of mutations can be increased by exposure to ionising radiation (for example, gamma rays, x-rays and ultraviolet rays) and some chemical mutagens (for example, chemicals in tobacco) The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
A Level Biology - Classification and Biodiversity Presentation
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A Level Biology - Classification and Biodiversity Presentation

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This is a fully editable PowerPoint presentation designed specifically for the new Edexcel A Level Biology B Specification for first teaching in 2015. It covers the whole of Topic 3 which is Classification and Biodiversity. Each specification objective is covered in just the right amount of detail with clear diagrams and clever slide animations. This presentation is almost 100 slides long! Although it is designed for the Edexcel specification much of its content is relevant for other A Level courses. A sample of this presentation can be viewed and downloaded from here: http://www.slideshare.net/mrexham/a-level-biology-classification-and-biodiversity
Section 4 Presentation Bundle - IGCSE Biology 9-1
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Section 4 Presentation Bundle - IGCSE Biology 9-1

4 Resources
These PowerPoints cover every topic, every core practical, every syllabus objective you need to know from Section 4 of theEdexcel IGCSE 9-1 Syllabus (4BI1) There are an incredible 93 slides!! It is entirely editable so you can chop and change it to meet your scheme of work! Custom drawn simple diagrams and incredible animations. Every topic has some true false statements and an exam style question with answers at the end to check understanding. Simple colour coding to show what is in Dual (green slides) and what is the extra for separate Biology (orange slides) This is a fully updated version of my best selling resource for the old Edexcel IGCSE syllabus. YOU SAVE OVER 40% BY BUYING THE BUNDLE RATHER THAN THE INDIVIDUAL TOPICS
IGCSE Biology 9-1 - 2f Respiration
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IGCSE Biology 9-1 - 2f Respiration

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 2f Respiration 2.34 understand how the process of respiration produces ATP in living organisms 2.35 know that ATP provides energy for cells 2.36 describe the differences between aerobic and anaerobic respiration 2.37 know the word equation and the balanced chemical symbol equation for aerobic respiration in living organisms 2.38 know the word equation for anaerobic respiration in plants and in animals 2.39 practical: investigate the evolution of carbon dioxide and heat from respiring seeds or other suitable living organisms The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
IGCSE Biology 9-1 - 3b Inheritance - Genetics
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IGCSE Biology 9-1 - 3b Inheritance - Genetics

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 3b Inheritance - Genetics 3.19 understand how genes exist in alternative forms called alleles which give rise to differences in inherited characteristics 3.20 understand the meaning of the terms: dominant, recessive, homozygous, heterozygous, phenotype, and genotype 3.21B understand the meaning of the term codominance 3.22 understand that most phenotypic features are the result of polygenic inheritance rather than single genes 3.23 describe patterns of monohybrid inheritance using a genetic diagram 3.24 understand how to interpret family pedigrees 3.25 predict probabilities of outcomes from monohybrid crosses 3.26 understand how the sex of a person is controlled by one pair of chromosomes, XX in a female and XY in a male 3.27 describe the determination of the sex of offspring at fertilisation, using a genetic diagram The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
IGCSE Biology 9-1 - 2g Gas Exchange - Humans
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IGCSE Biology 9-1 - 2g Gas Exchange - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 2g Gas Exchange - Humans 2.46 describe the structure of the thorax, including the ribs, intercostal muscles, diaphragm, trachea, bronchi, bronchioles, alveoli and pleural membranes 2.47 understand the role of the intercostal muscles and the diaphragm in ventilation 2.48 explain how alveoli are adapted for gas exchange by diffusion between air in the lungs and blood in capillaries 2.49 understand the biological consequences of smoking in relation to the lungs and the circulatory system, including coronary heart disease 2.50 practical: investigate breathing in humans, including the release of carbon dioxide and the effect of exercise The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
IGCSE Biology 9-1 - 2g Gas Exchange - Flowering Plants
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IGCSE Biology 9-1 - 2g Gas Exchange - Flowering Plants

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 2g Gas Exchange - Flowering Plants 2.40B understand the role of diffusion in gas exchange 2.41B understand gas exchange (of carbon dioxide and oxygen) in relation to respiration and photosynthesis 2.42B understand how the structure of the leaf is adapted for gas exchange 2.43B describe the role of stomata in gas exchange 2.44B understand how respiration continues during the day and night, but that thenet exchange of carbon dioxide and oxygen depends on the intensity of light 2.45B practical: investigate the effect of light The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
IGCSE Biology 9-1 - 2e Nutrition - Humans
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IGCSE Biology 9-1 - 2e Nutrition - Humans

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 2e Nutrition - Humans 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. 2.27 Describe the structure and function of the human alimentary canal, including the mouth, oesophagus, stomach, small intestine (duodenum and ileum), large intestine (colon and rectum) and pancreas. 2.28 Understand how food is moved through the gut by peristalsis. 2.29 Understand the role of digestive enzymes, including the digestion of starch to glucose by amylase and maltase, the digestion of proteins to amino acids by proteases and the digestion of lipids to fatty acids and glycerol by lipases. 2.30 Understand that bile is produced by the liver and stored in the gall bladder. 2.31 Understand the role of bile in neutralising stomach acid and emulsifying lipids. 2.32 Understand how the small intestine is adapted for absorption, including the structure of a villus. 2.33B Practical: investigate the energy content in a food sample. The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com
A Level Biology Topic 7 - Modern Genetics
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A Level Biology Topic 7 - Modern Genetics

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A Level Biology Topic 7 - Modern Genetics Edexcel Biology B PowerPoint presentation of over 100 slides covering the whole topic This topic builds on the knowledge of nucleic acids and proteins and how they are involved in gene expression. Knowledge of epigenetics, the use of stem cells and how these are contributing to medical advances are considered. The ethical implications of the use of gene technology in scientific developments are discussed. 7.1 Using gene sequencing 7.2 Factors affecting gene expression 7.3 Stem cells 7.4 Gene technology
A Level Biology - Origins of Genetic Variation Presentation
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A Level Biology - Origins of Genetic Variation Presentation

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This fully editable PowerPoint presentation covers the entire of Topic 8 from the Edexcel Biology B A Level course. How are mutations the source of new variations and how do the processes of random assortment and crossing over during meiosis give rise to new combinations of alleles in gametes? How does random fertilisation during sexual reproduction bring about genetic variation? Understand the terms ‘genotype and phenotype’,’ homozygote and heterozygote’, ‘dominance’, ‘recessive’, ‘codominance’ and ‘multiple alleles’. Be able to construct genetic crosses and pedigree diagrams. Can you explain sex linkage on the X chromosome, including haemophilia in Humans? Can you explain the inheritance of two non-interacting unlinked genes? Do you understand that autosomal linkage results from the presence of alleles on the same chromosome and that the results of crosses can be explained by the events of meiosis, including black/grey body and long/vestigial wing in Drosophila? Can you use the chi squared test to test the significance of the difference between observed and expected results? Understand that selection pressures acting on the gene pool change allele frequencies in the population, including: ●Stabilising selection maintaining continuity in a population ●Disruptive selection leading to changes or speciation. Understand that sometimes changes in allele frequencies can be the result of chance and not selection, including genetic drift. Understand that allele frequencies can be influenced by: ● population bottlenecks ● founder effect. Understand how the Hardy-Weinberg equation can be used to monitor changes in the allele frequencies in a population.
IGCSE Biology 9-1 - 1a Characteristics of Living Organisms
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IGCSE Biology 9-1 - 1a Characteristics of Living Organisms

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the first topic - Section 1a Characteristics of Living Organisms 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. The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question.
Edexcel IGCSE Biology 9-1 Syllabus Checklist - Double Award Only
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Edexcel IGCSE Biology 9-1 Syllabus Checklist - Double Award Only

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A handy document with the syllabus neatly arranged but with tick boxes for self assessment (red, amber, green) and a box to tick when the objective has been revised. This is only for students sitting Double Award IGCSE Science NOT separate science Very helpful for revision or to track progress through the course
IGCSE Biology 9-1 - 3a Sexual and Asexual
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IGCSE Biology 9-1 - 3a Sexual and Asexual

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 3a Sexual and Asexual 3.1 understand the differences between sexual and asexual reproduction 3.2 understand that fertilisation involves the fusion of a male and female gamete to produce a zygote that undergoes cell division and develops into an embryo The file is fully editable, has plenty of original diagrams and animations along with true false concept check questions at the end of the presentation and an exam style question. More resources available from www.mrexham.com