Why might athlethes take drugs? Athletes may take drugs to give them factors that will increase the liklihood of winning their event. For example weightlifters need a lot of muscle and need to be strong so use anabolic steriods to build up their muscle mass How do sports events monitor drug use? The sports authorities keep producing new tests for drugs. Sometimes they run random drug tests to try and identify people using them. Find an example of a athlete disqualified for drug use? Marion Jones
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Cellular Functions CORE TOPIC 1: CELLULAR FUNCTIONS Learning Outcomes: (a) Describe and interpret drawings and photographs of typical animal and plant cells as seen under the electron microscope‚ recognising the following membrane systems and organelles: rough and smooth endoplasmic reticulum‚ Golgi body‚ mitochondria‚ ribosomes‚ lysosomes‚ chloroplasts‚ cell surface membrane‚ nuclear envelope‚ centrioles‚ nucleus and nucleolus. (b) Outline the functions of the membrane systems and organelles
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white. It is because the protein in egg white undergoes denaturation‚ the cross linkage(the hydrogen bonds‚ ionic bonds and disulphride bonds) which maintain the protein shape destructed‚ so protein lose its tertiary conformation. This denaturing process is very important‚ because before protein can be used in digestion they must be unfolded. Part A: denaturation of egg white Aim: To examine the factors on the effect of denaturation of egg white. Principle: As protein denaturation can be cause
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Question 5: The chromophore in this assay is Coomassie Brilliant Blue dye. Question 6: It is important to set up a blank to separate the solute (saline) from the protein (stock). By subtracting the absorbance of the blank (which has no protein present) from the original absorbance the absorbance of the protein at each concentration will remain. Question 7: The Lowry method relies on two different reactions. The first is the formation of a copper ion complex with amide bonds‚ forming reduced
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Handing Change at Ferguson: The Credit Function Executive Summary John Culbert is given the difficult task of selecting the best approach that will capitalize on opportunities to increase the performance efficiency of the credit function without disrupting its current customer-oriented culture. His main challenge is the lack of a comprehensive system to evaluate the gains from centralization and the problems it could potentially create vis-à-vis the current status quo. Hence‚ we suggest a
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During protein digestion‚ a water molecule is added which breaks down the carbonyl-carbon-nitrogen sin the peptide bonds of proteins causing the liberation of amino acids. This process is referred to as proteolysis. Water molecules break down the carbonyl-carbon-nitrogen single bond (peptide bond) that holds single amino acid molecules together (Caroline Ritchie‚ 2013. This process is called hydrolysis and is catalysed by protease. The three main protease enzymes produced during digestion are pepsin
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Intact protein and base hydrozylate have different color reactions when subjected into various tests. The protein used is Casein which was isolated from milk. Color reactions ‚in these test‚ gives off the information about the composition of a protein. Results often varies from being positive to one and negative to another since one has its peptide bond intact while the other is broken. The different tests that are used in this experiment are : biuret test‚ Sakaguchi test‚ ninhydrin test‚ xanthoproteic
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Laboratory Exercise #3 Measuring Protein in Solution Abstract The purpose of this lab was to learn about the Biuret assay reaction to determine if it can detect proteins and amino acids; also‚ to understand the process of “salting out” proteins and how to determine the amount of protein in a solution. In order to do so‚ egg white and ammonium sulfate were mixed on ice and then put into the centrifuge. After PBS was added‚ the amount of protein could then be determined. After that‚ 14 test tubes
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1. Describe the general structure and function of the nervous system. The Nervous System is a "network" which delivers information and monitors the processes taking place in our bodies at all times. The nervous system in all its aspects allows us to function as a single controlled and coordinated unit. The basic nerve cell nerve cell is a neuron; a chain of neurons is actually a "communication cable "inside our bodies. Neuron structure is basically the cell nucleus‚ the dendrites which receive information
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The Construction Sequence Although the specific sequence of construction steps varies and overlaps‚ generally we build your home in the following order: ▪ Survey ▪ Permits ▪ Sewer & Water ▪ Plan Commission ▪ Building Department ▪ Foundation ▪ Excavation ▪ Footer ▪ Form and pour walls ▪ Perimeter drain ▪ Waterproof ▪ Ground rough plumbing ▪ Basement/Crawl
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