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 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 AQA GCSE course but can be modified for other exam boards. 29 slides cover: respiration. By the end of the powerpoint students would have covered /: 4.4.2.1 Aerobic and anaerobic respiration Students should be able to describe cellular respiration as an exothermic reaction which is continuously occurring in living cells. The energy transferred supplies all the energy needed for living processes. Respiration in cells can take place aerobically (using oxygen) or anaerobically (without oxygen), to transfer energy. Students should be able to compare the processes of aerobic and anaerobic respiration with regard to the need for oxygen, the differing products and the relative amounts of energy transferred. Organisms need energy for: • chemical reactions to build larger molecules • movement • keeping warm. Aerobic respiration is represented by the equation: glucose + oxygen --> carbon dioxide + water Students should recognise the chemical symbols: C6H12O6, O2, CO2 and H2O. Anaerobic respiration in muscles is represented by the equation: glucose  lactic acid As the oxidation of glucose is incomplete in anaerobic respiration much less energy is transferred than in aerobic respiration. Anaerobic respiration in plant and yeast cells is represented by the equation: Glucose --> ethanol + carbon dioxide Anaerobic respiration in yeast cells is called fermentation and has economic importance in the manufacture of bread and alcoholic drinks. **4.4.2.2 Response to exercise ** During exercise the human body reacts to the increased demand for energy. The heart rate, breathing rate and breath volume increase during exercise to supply the muscles with more oxygenated blood. If insufficient oxygen is supplied anaerobic respiration takes place in muscles. The incomplete oxidation of glucose causes a build up of lactic acid and creates an oxygen debt. During long periods of vigorous activity muscles become fatigued and stop contracting efficiently. (HT only) Blood flowing through the muscles transports the lactic acid to the liver where it is converted back into glucose. Oxygen debt is the amount of extra oxygen the body needs after exercise to react with the accumulated lactic acid and remove it from the cells.

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

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

Worksheet contains 320 active recall questions to cover Topic 3 – Cell Structure, Reproduction and Development from the international edexcel biology course. The questions can be used for: -Short quizzes -Revision questions -Homework -Assesssment

Designed for the new specification International A-level edexcel course but can be modified for other exam boards. 21 slides covering The cell cycle By the end of the powerpoint students would have covered: -The cell cycle’s role in the production of identical daughter cells for growth and asexual reproduction. Powerpoint contains exam questions

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 4.1.1 ) 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: (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

Designed for the new specification IGCSE edexcel course but can be used for other examination boards. Covers: (a) Reproduction 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 Flowering plants 3.3  describe the structures of an insect-pollinated and a wind-pollinated flower and explain how each is adapted for pollination 3.4  understand that the growth of the pollen tube followed by fertilisation leads to seed and fruit formation 3.5  practical: investigate the conditions needed for seed germination 3.6  understand how germinating seeds utilise food reserves until the seedling can carry out photosynthesis 3.7  understand that plants can reproduce asexually by natural methods (illustrated by runners) and by artificial methods (illustrated by cuttings)

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

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: (e) Nutrition Flowering plants 2.18 understand the process of photosynthesis and its importance in the conversion of light energy to chemical energy 2.19 know the word equation and the balanced chemical symbol equation for photosynthesis 2.20 understand how varying carbon dioxide concentration, light intensity and temperature affect the rate of photosynthesis 2.21 describe the structure of the leaf and explain how it is adapted for photosynthesis 2.22 understand that plants require mineral ions for growth, and that magnesium ions are needed for chlorophyll and nitrate ions are needed for amino acids 2.23 practical: investigate photosynthesis, showing the evolution of oxygen from a water plant, the production of starch and the requirements of light, carbon dioxide and chlorophyll

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

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: (d) Movement of substances into and out of cells 2.15 understand the processes of diffusion, osmosis and active transport by which substances move into and out of cells 2.16 understand how factors affect the rate of movement of substances into and out of cells, including the effects of surface area to volume ratio, distance, temperature and concentration gradient 2.17 practical: investigate diffusion and osmosis using living and non-living systems

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

Check out the lesson that goes with these questions: https://www.tes.com/teaching-resource/culturing-microorganisms-11910368

Check out my other resources - www.tes.com/teaching-resources/shop/mr_science Used the above lesson in a job interview hopefully you find it useful. Please remember to comment if it helps you get a job :)

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