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.

New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 2j Flowering Plants 2.83 understand that plants respond to stimuli 2.84 describe the geotropic and phototropic responses of roots and stems 2.85 understand the role of auxin in the phototropic response of stems 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.

New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 2h Transport - Flowering Plants 2.51 Understand why simple, unicellular organisms can rely on diffusion for movement of substances in and out of the cell. 2.52 Understand the need for a transport system in multicellular organisms. 2.53 Describe the role of phloem in transporting sucrose and amino acids between the leaves and other parts of the plant. 2.54 Describe the role of xylem in transporting water and mineral ions from the roots to other parts of the plant. 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. 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.

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.

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 2 which is Cells, Viruses and Reproduction of Living Things. Each specification objective is covered in just the right amount of detail with clear diagrams and clever slide animations. This presentation is over 170 slides long! Although it is designed for the Edexcel specification much of its content is relevant for other A Level courses.

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

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.

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.

his 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 1 which is Biological Molecules. Each specification objective is covered in just the right amount of detail with clear diagrams and clever slide animations. This presentation is over 150 slides long! Although it is designed for the Edexcel specification much of its content is relevant for other A Level courses.

This PowerPoint covers every topic, every core practical, every syllabus objective you need to know from the Edexcel IGCSE 9-1 Syllabus (4BI1) It is an incredible 864 slides long!! 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. This file is over 200MB so make sure you have a decent internet connection when you download it! YOU SAVE 50% BY BUYING THE BUNDLE RATHER THAN THE INDIVIDUAL TOPICS

New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the topic - Section 2a Levels of organisation 2.1 describe the levels of organisation in organisms: organelles, cells, tissues, organs and systems 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.

New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019 This is a PowerPoint presentation for the first topic - Section 2c Biological Molecules Section 2c Biological Molecules 2.7 Identify the chemical elements present in carbohydrates, proteins and lipids (fats and oils). 2.8 Describe the structure of carbohydrates, proteins and lipids as large molecules made up from smaller basic units: starch and glycogen from simple sugars, protein from amino acids, and lipid from fatty acids and glycerol. 2.9 Practical: investigate food samples for the presence of glucose, starch, protein and fat. 2.10 Understand the role of enzymes as biological catalysts in metabolic reactions. 2.11 Understand how temperature changes can affect enzyme function, including changes to the shape of active site. 2.12 Practical: investigate how enzyme activity can be affected by changes in temperature. 2.13 Understand how enzyme function can be affected by changes in pH altering the active site. 2.14B Practical: investigate how enzyme activity can be affected by changes in pH. (In orange) 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.

Topic 9 GCSE Biology: Ecosystems and material cycles presentation is a fully editable PowerPoint which is over 100 slides long!

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.

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.

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

This is a free sample for my complete PowerPoint for the Topic 8 Exchange and Transport In Animals in Edexcel GCSE Bioogy 9-1