Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: Micro-organisms 5.5  understand the role of yeast in the production of food including bread 5.6  practical: investigate the role of anaerobic respiration by yeast in different conditions 5.7  understand the role of bacteria (Lactobacillus) in the production of yoghurt 5.8 understand the use of an industrial fermenter and explain the need to provide suitable conditions in the fermenter, including aseptic precautions, nutrients, optimum temperature and pH, oxygenation and agitation, for the growth of micro- organisms

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: 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 Flowering plants 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 Contains exam questions

This study guide has been designed and written to cover the International Edexcel GCSE Biology course. This bundle contains all 5 biology topics. The nature and variety of living organisms Structure and functions in living organisms Reproduction and inheritance Ecology and the environment Use of biological resources The revision guides come with free science videos. 300 pages long. Contains retrieval practice questions. Comes with support video via my youtube channel.

Designed for the new specification AQA GCSE( covers spec point 4.7.2 ) course but can be modified for other exam boards. 18 slides covering Decomposition. By the end of the powerpoint students would have covered: 4.7.2.3 Decomposition (biology only)

Designed for the new specification AQA GCSE( covers spec point 4.5.3.4 ) course but can be modified for other exam boards. 23 slides covering Hormones in human reproduction: By the end of the powerpoint students would have covered: 4.5.3.4 Hormones in human reproduction Students should be able to describe the roles of hormones in human reproduction, including the menstrual cycle. During puberty reproductive hormones cause secondary sex characteristics to develop. Oestrogen is the main female reproductive hormone produced in the ovary. At puberty eggs begin to mature and one is released approximately every 28 days. This is called ovulation. Testosterone is the main male reproductive hormone produced by the testes and it stimulates sperm production. Several hormones are involved in the menstrual cycle of a woman. Follicle stimulating hormone (FSH) causes maturation of an egg in the ovary. Luteinising hormone (LH) stimulates the release of the egg. Oestrogen and progesterone are involved in maintaining the uterus lining. (HT only) Students should be able to explain the interactions of FSH, oestrogen, LH and progesterone, in the control of the menstrual cycle. (HT only) Students should be able to extract and interpret data from graphs showing hormone levels during the menstrual cycle. Contains examination questions Alternative starter question for triple or combined science students.

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 26 slides covering Plant tissues, organs and systems. By the end of the powerpoint students would have covered: 4.2.3.1 Plant tissues 4.2.3.2 Plant organ system

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 17 slides covering Cell division (chromosomes, mitosis and the cell cycle) By the end of the powerpoint students would have covered: 4.1.2.1 Chromosomes The nucleus of a cell contains chromosomes made of DNA molecules. Each chromosome carries a large number of genes. In body cells the chromosomes are normally found in pairs. **4.1.2.2 Mitosis and the cell cycle ** Cells divide in a series of stages called the cell cycle. Students should be able to describe the stages of the cell cycle, including mitosis. During the cell cycle the genetic material is doubled and then divided into two identical cells. Before a cell can divide it needs to grow and increase the number of sub-cellular structures such as ribosomes and mitochondria. The DNA replicates to form two copies of each chromosome. In mitosis one set of chromosomes is pulled to each end of the cell and the nucleus divides. Finally the cytoplasm and cell membranes divide to form two identical cells. Students need to understand the three overall stages of the cell cycle but do not need to know the different phases of the mitosis stage. Cell division by mitosis is important in the growth and development of multicellular organisms. Students should be able to recognise and describe situations in given contexts where mitosis is occurring.

Designed for the new specification AQA GCSE( covers spec point 4.5.3.6 ) course but can be modified for other exam boards. 20 slides covering the use of hormones to treat infertility: Describe what is meant by infertility and suggest reasons for it Describe the steps used in IVF Describe how FSH and IVF can be used to help treat infertility Evaluate from the perspective of patients and doctors the methods of treating infertility

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: Flowering plants 2.70 understand the origin of carbon dioxide and oxygen as waste products of metabolism and their loss from the stomata of a leaf Humans 2.71 know the excretory products of the lungs, kidneys and skin (organs of excretion) 2.72B understand how the kidney carries out its roles of excretion and osmoregulation 2.73B describe the structure of the urinary system, including the kidneys, ureters, bladder and urethra 2.74B describe the structure of a nephron, including the Bowman’s capsule and glomerulus, convoluted tubules, loop of Henle and collecting duct 2.75B describe ultrafiltration in the Bowman’s capsule and the composition of the glomerular filtrate 2.76B understand how water is reabsorbed into the blood from the collecting duct 2.77B understand why selective reabsorption of glucose occurs at the proximal convoluted tubule 2.78B describe the role of ADH in regulating the water content of the blood 2.79B understand that urine contains water, urea and ions

Designed for the new specification AQA GCSE( covers spec point 4.5.3.2 ) course but can be modified for other exam boards. 19 slides covering Control of blood glucose levels: Describe how Blood glucose concentration is monitored and controlled by the pancreas Explain the difference between Type 1 and Type 2 diabetes Extract information and interpret data from graphs that show the effect of insulin in blood glucose levels

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 29 slides covering Photosynthesis By the end of the powerpoint students would have covered: 4.4.1.1 Photosynthetic reaction Photosynthesis is represented by the equation: carbon dioxide + water light glucose + oxygen Students should recognise the chemical symbols: CO2, H2O, O2 and C6H12O6. Students should be able to describe photosynthesis as an endothermic reaction in which energy is transferred from the environment to the chloroplasts by light. 4.4.1.2 Rate of photosynthesis Students should be able to explain the effects of temperature, light intensity, carbon dioxide concentration, and the amount of chlorophyll on the rate of photosynthesis. Students should be able to: measure and calculate rates of photosynthesis extract and interpret graphs of photosynthesis rate involving one limiting factor plot and draw appropriate graphs selecting appropriate scale for axes translate information between graphical and numeric form. (HT only) These factors interact and any one of them may be the factor that limits photosynthesis. (HT only) Students should be able to explain graphs of photosynthesis rate involving two or three factors and decide which is the limiting factor. (HT only) Students should understand and use inverse proportion – the inverse square law and light intensity in the context of photosynthesis. (HT only) Limiting factors are important in the economics of enhancing the conditions in greenhouses to gain the maximum rate of photosynthesis while still maintaining profit. **Required practical activity 6: investigate the effect of light intensity on the rate of photosynthesis using an aquatic organism such as pondweed. ** 4.4.1.3 Uses of glucose from photosynthesis The glucose produced in photosynthesis may be: used for respiration converted into insoluble starch for storage used to produce fat or oil for storage used to produce cellulose, which strengthens the cell wall used to produce amino acids for protein synthesis. To produce proteins, plants also use nitrate ions that are absorbed from the

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE( covers spec point 4.10.1.2 ) course but can be modified for other exam boards. 14 slides covering Potable water: -the difference between potable water and pure water -the differences in treatment of ground water and salty water   -how to carry out a simple distillation of salt solution and test the distillate to determine its purity. -includes details of the required practical (see worksheets www.tes.com/teaching-resource/required-practical-water-purification-11771279)

Designed for the new specification AQA GCSE( covers spec point 4.1.1 ) course but can be modified for other exam boards. 19 slides covering Culturing microorganisms: -State how bacteria multiple -Describe how to prepare an uncontaminated culture using aseptic technique -Calculate cross-sectional areas of colonies -Calculate the number of bacteria in a population after a certain time if given the mean division time -Required practical activity 2: investigate the effect of antiseptics or antibiotics on bacterial growth using agar plates and measuring zones of inhibition.

Designed for the new specification IGCSE edexcel course but can be used for other examination boards. Covers: Humans 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

Designed for the new specification IGCSE edexcel course but can be used for other examination boards. Covers: ( c ) 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 Contains exam style questions

Designed for the new specification IGCSE edexcel course but can be used for other examination boards. Covers: (b) Variety of living organisms 1.2 describe the common features shown by eukaryotic organisms: plants, animals, fungi and protoctists 1.3 describe the common features shown by prokaryotic organisms such as bacteria 1.4 understand the term pathogen and know that pathogens may include fungi, bacteria, protoctists or viruses Contains exam style questions

A simple sheet for students to tick off as students complete their required practicals. Goes into the front of their practical books. Check out my other resources at www.tes.com/teaching-resources/shop/mr_science

A simple sheet for students to tick off as students complete their required practical’s. Goes into the front of their practical books. Check out my other resources at www.tes.com/teaching-resources/shop/mr_science

A simple sheet for students to tick off as students complete their required practical’s. Goes into the front of their practical books. Check out my other resources at www.tes.com/teaching-resources/shop/mr_science