Biology End of Year Revision Quick Recap on Graphs: * Always remember to include units * Put the dependent (thing you measure) along the y-axis. (One going up) * Put the independent (thing you change) on the x-axis (along the bottom) * Don’t join the dots up‚ draw a line of best fit. * Circle anomaly result. Healthy Diet For a healthy diet‚ you need energy. So you need: CARBOHYDRATES‚ to release energy. FATS‚ to keep warm and release energy PROTEIN‚ for growth cell
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WOODS Is organic and will decay over time. In wetter conditions with decay will be quicker. It is also subject to conditions such as dry rot‚ or pests. The greater the density of wood‚ the greater its mechanical strength. Knots also contained‚ formed where branches grew from main trunk‚ or where a bud was formed. Can generate weaknesses‚ or be aesthetic. HARDWOODS o o Deciduous (leaf-losing) trees. Slower growing‚ making them denser. Some take up to 100 years to reach full maturity
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Circulatory systems Closed circulatory systems: • Blood leaves heart under pressure to arteries then arterioles then capillaries. • Capillaries come in large numbers. They exchange substances between the blood and cells. • After passing through capillaries‚ blood goes back to the heart via veins. • Valves in the veins ensure that blood only flows in one direction. Single circulatory system: • Heart pumps deoxygenated blood. • Gaseous exchange (diffusion of CO2 from blood to H2O and diffusion
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GCSE Geography Unit 1- Dynamic Planet Brief overview study guide Please use this booklet with caution – it is designed to give a summary of some of the key ideas and point you in the right direction for case studies. It does not however cover everything and has little case study detail. A full revision programme also needs: Revision using your notes Ensuring you understand key terms and can give definitions of them. Learning key facts about case studies Completion of past
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Revision Checklist for IGCSE Biology 0610 Guide for Students REVISION CHECKLIST for IGCSE Biology 0610 A guide for students How to use this guide The guide describes what you need to know about your IGSCE Biology examination. It can be used to help you to plan your revision programme for the theory examinations and will explain what the examiners are looking for in the answers you write. It can also be used to help you revise by using the tick boxes in Section 3‚ ‘What you need to know?’‚ to
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| Privacy Statem ent | Site Map | Contact Us | Search Home GCSE: Biology Chemistry Commerce Statistics Mathematics A-Level: Physics Chemistry Economics Mathematics Home Revision Papers Revision Community Blog Games Advertise GCSE Biology Transport In Humans Transport In Humans The human transport system is a system of tubes with a pump and valves to ensure one way blood flow. We need a transport system to deliver oxygen‚ nutrients and other substances to all
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Biology Revision notes Ecology: 1) Ecosystems‚ sampling and population studies Population: All the individuals of a given species living together in the same area and at the same time. Community: Community: all the individuals of all the species living together in the same area and at the same time. Habitat: The area in which an organism lives within an ecosystem Niche: describes where an organism lives‚ what it does (its role)‚ what it feeds on and how it interacts with other organisms and the
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REVISION NOTES FOR PRELIM BIOLOGY: [ A LOCAL ECOSYSTEM ] ~ Ecosystems: “any area that contains living organisms interacting with each other and their environment. In a balanced ecosystem‚ there is a flow of energy through it and recycling of some materials” Inputs and Outputs of Ecosystems include: - the energy flow through the ecosystem; energy from the sun flows one way through‚ with heat loss at each trophic level - the input and recycling of inorganic and organic material (matter) - the
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2.) a) proteins b.) i) Amylase ii) Protease iii) Lipase c) i) Glucose ii) Amino Acids iii) Fatty acids and Glycerol 3.) a.) Each enzyme has a unique shape that fits onto the substrate. As enzymes normally only catalyse one reaction the substrate has to fit in the specific shape (active site) and if it doesn’t fit in (lock and key method) then the enzyme won’t be catalysed. b.) As when the enzyme is denatured it’s special shape is destroyed‚ thus destroying it’s active site meaning that
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GCSE French/ German/ Spanish Revision Plan Your listening exam is worth 20% of your overall GCSE grade. Your reading exam is worth 20% of your overall GCSE grade. General guidance for the exam papers: * The exam papers will feature questions based on ANY of the topics found in your textbook (even the ones you have forgotten about because you did them ages ago at the beginning of Year 10) * All of the instructions on the exam paper will be in English and your answers will also be in English
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