Christian Alliance Cheng Wing Gee College S4 Biology Practical Worksheet Name: _____________________________ ( ) Class: ________ Date: _______________ Practical 5.1 Detection of food substances by food tests In the space below‚ write down the procedures of all the following food tests: Results A Test for glucose using Clinistix paper Sample Clinistix paper Original colour Final colour Glucose solution Distilled water B Test for reducing sugars using Benedict’s test
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During an undercover investigation‚ Officer Cline witnessed Defendant #1 purchase a bag of what appeared to be marijuana and LSD. When Officer Cline approached the dealer (Defendant #2)‚ he was given a similar bag. Following the purchase‚ officers approached and arrested both defendants on narcotics violations. Forensic tests later revealed that the contents of the bag were nothing more than honey and dried leaf matter and rolling paper coated with lime extract. The defense attorneys for both defendants
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Biology GCSE Coursework: Osmosis in Potato Chips Skill Area P: Planning Aim: To investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato chip of a given size. Hypothesis: Osmosis is defined as the net movement of water or any other solution’s molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a partially
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“A Chip of Ruby Glass” Thesis Essay Take a moment‚ imagine your life without learning opportunities‚ knowing no matter how hard you try‚ your life will still end up being a shoe-shiner‚ or maybe worse. Once you finished‚ take a look at history‚ see what the life of the black was like and relate to them. Many have died‚ sacrifice their life for the banishment of racism‚ and so did the people who agrees with it; the oppression they were under was unbelievable‚ it drove thousands crazy and finally
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The V-Chip What is a V-chip? This term has become a buzz word for any discussion evolving telecommunications regulation and television ratings‚ but not too many reports define the new technology in its fullest form. A basic definition of the V-chip; is a microprocessor that can decipher information sent in the vertical blanking of the NTSC signal‚ purposefully for the control of violent or controversial subject matter. Yet‚ the span of the new chip is much greater than any working definition can
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My Investigation on osmosis Osmosis is a special kind of diffusion. While diffusion can describe the movement of any kind of molecule‚ osmosis is only about the movement of water molecules. To show this diffusion I will be using potato discs‚ of the same size and mass‚ in different concentrations of sugar solution to find out whether the mass of the discs increases or decreases depending on the concentration. I predict that when the sugar solution is 0% the mass will increase as there is
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GCE Examinations from 2009 First AS Award: Summer 2009 First A Level Award: Summer 2010 Biology GCE AS and A BIOLOGY 1 Contents WJEC AS GCE in Biology WJEC A Level GCE in Biology 2009 & 2010 First AS Award - Summer 2009 First A level Award - Summer 2010 Page Entry Codes and Availability of Units 2 Summary of Assessment 3 Introduction 5 Aims 9 Assessment Objectives 10 Specification Content 11 Scheme of Assessment 26 Key Skills 31
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Food Inc This movie is a documentary of how foods are being produced and it helped us show the basis of how food is packaged and sold locally in our grocery stores. This movie reveals what our industry has been trying so desperately to keep from us. We have a right to know what we put in our bodies. We have a right to know whether the food we’re eating has been genetically modified‚ or where it comes from. After watching the film Food‚ Inc. I gain knowledge on parts of our food industry that was
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Biology Investigation: Effect of different concentrations of sucrose solutions on the mass of potatoes Research question Is the mass of potatoes going to be smaller or bigger in different sucrose concentration? Introduction Osmosis is a process that occurs at a cellular level that entails the spontaneous net movement of water through a semi-permeable membrane from a region of low solute concentration to an area of high solute concentration in order to equalize the level of water
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general-purpose design which has its own advantages and disadvantages. ➢ Adv: One chip can run a range of programs. That ’s why you don ’t need separate computers for different jobs‚ such as crunching spreadsheets or editing digital photos ➢ Disadv: For any one application‚ much of the chip ’s circuitry isn ’t needed‚ and the presence of those "wasted" circuits slows things down. Suppose‚ instead‚ that the chip ’s circuits could be tailored specifically for the problem at hand--say‚ computer-aided
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