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Intro I am going to do an investigation into what concentration of sucrose solution would cause “Incipient Plasmolysis”. Theory Plasmolysis is the result of a (in particular) plant cell which has lost vast amounts of water. When this happens‚ turgor pressure within the cell has decreased to the point where the cytoplasm of the cell membrane peels away from the cell wall. When this begins to happen it is called Incipient Plasmolysis and when the cytoplasm is almost completely gone it is call “full/complete”
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A1-1 Different species of algae are distributed in specific zones on the shore according to their characteristics‚ this is called zonation. For our investigation we are analysing the link between these characteristics and the zones in which each species inhabits. The main algal species present are; Pelvetia canaliculata and Fucus spiralis (Upper shore)‚ Ascophyllum nodosum and Fucus vesiculosus (Middle shore)‚ and Fucus serratus and Laminaria digitata (Lower shore). General Appearance Pelvetia
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1. I believe that this bag is the most appealing and suitable bag both for my client and punk theme. The size of this bag is perfect for my client‚ also it can be held as both a side bag and a hand bag‚ which were both my clients’ first choices. Also the bag is very interesting‚ simple and appealing‚ as it only contains two simple colours‚ but also has badges to make it look punky. Also this bag contains secret pockets both inside and outside the bag to keep the very important personal belongings
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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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Trippple Award Specification (4BIO) Examination in 2012 Trippple Award Specification Key words are underlined in red. Practical work is printed in italics. Section 1: The nature and variety of living organisms Characteristics of living organisms include; M ovement R espitation S ensitivity G rowth R eproduction E xcretion N utrition In addition‚ all living organisms contain nucleic acids (DNA) and have the ability to control their internal conditions. Finally‚ all living
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A healthy diet contains the right balance of the different foods you need and the right amount of energy Carbohydrates and fats are needed to provide energy for your body chemistry to function correctly and to keep you warm at 37oC. Proteins are used by the body to build cells - growth of new tissue‚ cell repair and cell replacement. Mineral ions and vitamins are needed in small amounts for healthy functioning of the body - organs‚ skin‚ bones etc. Fibre keeps everything moving smoothly
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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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Determining the Solute Concentration of a Potato Aim: In this investigation I am going to work out the sugar concentration of a potato. I aim to find this out by putting potato cores into various concentrations‚ measuring the mass before and after. Due to osmosis the potato cores will change in mass to make the concentrations at an isotonic level‚ helping us to work out the mass of the potato. I predict that potato in the weaker solutions will gain mass‚ because some water will be absorbed by the
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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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