Chronic Kidney Disease BIO 105‚ sec M02 Prof. Palanca Ayo Powell (Term Paper) 3/25/12 The Kidney is one of the most important organs in the human body. Its primary function is the removal of waste & toxins from the blood stream. So if the kidney stopped working correctly and is no longer able to properly function that would lead to serious problems. Blood is no longer being cleaned. The waste and the toxins aren’t being removed. Instead it’s all building up in the blood stream causing
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ACTIVITY 1: Simulating Dialysis (Simple Diffusion) Answers 1. The molecular weight of urea is approximately 60. Which of the membranes can it pass through? a. 50 MWCO membrane b. 100 MWCO membrane c. 200 MWCO membrane d. Both the 100 and 200 MWCO membranes D. Both the 100 and 200 MWCO membranes 2. True or False: A solution containing glucose will diffuse faster through a 200 MWCO membrane if it is heated. True 3. The molecular weight of carbon C is 12; the molecular weight of hydrogen
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Physioex 9.0 Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Name __Christopher Scott_ Lab Time/Date ___1/15/2014 Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. ___ Two variables that affect rate of diffusion are molecule size and plasma membrane composition. A larger molecule will diffuse more slowly than a smaller molecule. The lipid content of the plasma membrane determines permeability of certain molecules. A
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cystitis? Inflammation‚ fever‚ increased urgency and frequency to urinate What are the symptoms of Bright’s disease? Back pain‚ vomiting and fever 13-14) Name two causes for Incontinence. Pregnancy and emotional disorders 15) How does dialysis therapy work? It is a process that removes metabolic waste from the blood 16) What is surrounded by the Bowman’s capsule? Glomerulus 17) What organ is most essential for homeostasis in this system? Kidneys 18) What are the functions of the
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Chapters 9 and 10 HOMEWORK 9.1 The Respiratory System 1. Summarize the role of the respiratory system. 2. Distinguish between inspiration and expiration. 3. Identify the structures of the human respiratory system. 9.2 The Upper Respiratory Tract 1. Summarize the role of the nose‚ pharynx‚ and larynx in respiration. 2. Identify the structures of the upper respiratory system and provide their function. 3. Explain how sound is produced by the larynx. 9.3 The Lower Respiratory
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AQA GCSE Revision Topics B1a Human Biology MULTIPLE CHOICE QUESTION PAPER B1a. 1. Co-ordination and control p24 Responding to change Nervous system - neurones Hormones – glands Notes understand p26 Reflex action Reflex arc pathway synapse p28 Menstrual cycle FSH‚ oestrogen‚ LH‚ ovulation p30 Artificial control of fertility Contraceptive pill IVF treatment p32 Controlling conditions Water & ions – kidneys Temperature Blood glucose – insulin
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PHYSIO EX 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. The temperature of the solutions and the difference in concentration of the ion or molecule between the sides of the membrane 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? Since the chemical formula for urea is (NH2)2CO and its molecular weight is about 60. It will not diffuse through the
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Exercise 1 Cell Transport Mechanisms and Permeability Name ____________________________________________________________ Lab Time/Date ______________________________ Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. * The size of the pores of the membrane * The size of the molecule diffusing through the membrane 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results
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Bibliography: David Sadava‚ D. M. (2011). Life: The Study of Biology Ninth Edition. Saunderland: Planet Friendly Publishing. Jacobs‚ C. W. (1998). Diffusion and Osmosis. Retrieved from Henry Ford Community College: http://sciweb.hfcc.net/Biology/jacobs/bio131/diffusion/Diff&Os.html
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Physioex 9.0 Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Name: Gayane koshkakaryan Lab Time/Date: Friday 8am Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. a. Molecular weight b. Solute concentration 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? a. Urea was unable to diffuse through the 20MWCO membrane
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