Direction and concentration gradients Bradley Benton ABSTRACT In this experiment‚ we will investigate the effect of solute concentration on osmosis. A semi‐permeable membrane (dialysis tubing) and sucrose will create an osmotic environment similar to that of a cell. Using different concentrations of sucrose (which is unable to cross the membrane) will allow us to examine the net movement of water across the membrane. INTRODUCTION A major determinant of diffusion in a biological system is membrane
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of water particles and is one of the passive transport that the molecules try to reach equilibrium is reached to the concentration. Introduction: In this experiment‚ the experimenter tried to organize the order of 5 unknown solutions by using dialysis tubing lab. The 5 solutions were put into each tubing bag that were all tied up and placed into each beaker of water and waited to look for the change in masses of each bag. The type of solution that were put in the tubing bag are the independent
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from http://www.nhs.uk/Conditions/Oedema/Pages/Introduction.aspx (accessed 28.04.2015) Patient.co.uk (2015) ‘Oedema’ Available from http://www.patient.co.uk/health/oedema-swelling (accessed 28.04.2015) NHS Choices (2015) ‘Dialysis’ Available from http://www.nhs.uk/conditions/Dialysis/Pages/Introduction.aspx (accessed 19.5.15) Kidney Research UK (2015) ‘Haemodialysis’ Available from http://www.kidneyresearchuk.org/page.aspx?pid=944 (accessed 19.5.15) WebMD (2015) ‘Coping emotionally after an organ transplant’
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If we add higher concentrations of sugar to the dialysis tubing‚ then the net movement of coffee into the dialysis tubing will increase. Materials scale or balance 24" dialysis tubing 4 transfer pipets sugar scissors rubber bands four coffee cups - they need to be roughly the same size 250ml graduated cylinder ruler small sauce pan 3 clean containers (600mls (about 20 ozs) or larger) Procedure: 1. Cut four 6-inch pieces of dialysis tubing and soak in a coffee cup filled with tap
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renal disease is when there is a permanent loss of total renal function. End-stage renal disease‚ is also known as chronic kidney disease (CKD)‚ with five stages. The fifth stage is the most severe stage‚ this is when the patient needs to begin dialysis‚ or be transplanted to survive. The Center for Disease Prevention and Control ranks End stage renal disease the ninth leading cause of death in the United States ("Center For Disease Control And Prevention"‚ 2010). New cases of ESRD in African
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2009). The number of patients suffering from CRF in United Kingdom (UK) is rising rapidly. Ferenbach and Wood (2005‚ p.16) state that in UK‚ about 6000 people are commencing dialysis treatment per year. Fluid overload is a frequently observed finding in renal failure patients. About one third of the patients receiving dialysis for Chronic Renal Failure have fluid overload despite advice to restrict their oral fluid intake (Roderick‚ et al 2004). This assignment will examine the clinical effectiveness
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fail‚ treatment is necessary‚ and there are only two options: a kidney transplant or dialysis. Dialysis first became a practical treatment in the 1960’s. There are two main types of dialysis‚ hemodialysis and peritoneal dialysis. Both types of dialysis filter blood of harmful wastes‚ extra salt‚ and water. Hemodialysis does this with a machine. Both require a special diet and both types have risks and benefits. Dialysis is not always permanent‚ it depends on if the disease is chronic (long-term) or acute
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| Color | Glucose | Time | Dialysis Bag | Beaker | Dialysis Bag | Beaker | Start | | | | | 30 minutes | | | | | Table 2 Osmosis Investigation – Water gain by dialysis bags Solution | Dialysis BagInitial Mass (g) | Dialysis BagFinal Mass (g) | Change in Mass (g) | % Change in Mass | Water | | | | | 0.2 M | | | | | 0.4 M | |
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Based on the five core strategic leadership actions‚ how would you compare the strategic leadership of TT Durai and Eunice Tay Key Strategic Leadership Action 1: Determining Strategic Direction Both leaders set clear directions for NKF which were communicated consistently throughout the organization. Durai defined NKF’s role as providing a “full-fledged renal programme - prevention‚ early detection and intervention.” He believed that in order to achieve
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National Kidney and Urologic Should it be legal to buy a kidney? Diseases Information Clearinghouse. 4Retrieved November 20‚ 2012‚ from http:// kidney.niddk.nih.gov/kudiseases/pubs/glomerular/ MedicalNewsToday (2011‚ November 18). What Is Dialysis? What Is Kidney Dialysis? Medical News Today: Health News. Retrieved November 20‚ 2012‚ from http:// www.medicalnewstoday.com/articles/152902.php MedlinePlus‚ M. P. (2012‚ February 15). Transplant rejection: MedlinePlus Medical Encyclopedia. National Library
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