IZZANI ISMAIL M13D Name : SITI ALIA IZZANI BINTI ISMAIL Class : M13D Date : 6th September 2013 Title : Movement through the plasma membrane Hour : 2 hours Assessment : Design Aim : To study the effect of lipid solubility of molecules on permeability of plasma membrane of animal cell. Introduction : Diffusion: In general‚ diffusion process occur when there is a concentration gradient between two region .Molecules (other than water) will move by diffusion
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of acetylsalicylic acid Results and Data treatment (A) Preparation of aspirin i) Details about the reactants Reaction of the acetylation of salicylic acid is following From the balanced reaction above‚ it can be seen that the stoichiometry between salicylic acid and acetic anhydride is 1: 1. In this experiment‚ 21.7mmol of salicylic acid was used to react 6.0mL of acetic anhydride and salicylic acid was limiting reagent. The expected amount of salicylic acid used: 21.7/1000*138
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PROTEIN ARTICLE RESEARCH SCI/241 PROTEIN ARTICLE RESEARCH Proteins are a part of every cell‚ tissue‚ and organ in our bodies. The protein we eat is broken down by amino acids that are later used to replace proteins in our bodies. These proteins include meats‚ poultry‚ fish‚ eggs‚ nuts‚ seeds‚ milk and milk products. Proteins are made up of amino acids. There are 20 different amino acids that join together to make up all types of protein. A complete protein source is one that provides all
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Title: Purification of Egg white protein Name: Michael Johnson Partner: David Logad & Nandita Date: 2nd 9th September 2004 Group: Thursday 11:30am - 3:30pm Introduction Salting Out In 1888 Hofmeister that it can be possible to dehydrate a protein by adding salt to the solution‚ salting out. When a protein in a aqueous solution it is surrounded by water‚ in fact there can be up to 0.35g of water tightly bound to 1g of protein (Simpson 2004). Also the effectiveness of the salting out
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Protein in the Digestive System Taylor Adams Biol 112- 501 18 April 2016 Introduction Proteins are found in nearly all foods that we eat. Once the food we eat makes its way to our stomachs‚ pepsinogen is released from chief cells. This enzyme mixes with hydrochloric acid in the stomach and begins to break down the proteins. Along with the stomach‚ the small intestine is also an important location for protein breakdown. The proteins from both locations are broken down into amino
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Daniel Bergey Lab 2: Proteins and Starches Purpose The purpose of lab 2 and both tests with proteins and starches is to determine which substance contains either protein or starch. Hypothesis Proteins: I predict that any substance I test that derives from a living organism is will test positive proteins. Any substance that isn’t from a living organism more than likely will test negative for proteins. Starches: I predict that any substance that contains any level of glucose will test positive
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Conjugated linoleic acid‚ is a form of linoleic acid‚ an omega-6 fatty acid important to human health (Wang and Jones‚ 2004). The CLA is formed by the bacteria in rumen of certain ruminants but not for humans. It is obtained by humans from dietary sources such as beef‚ lamb and dairy products including milk and cheese (Wang and Jones‚ 2004). CLA is an antioxidant‚ anti-carcinogenic‚ anti-diabetogenic‚ anti-atherosclerotic‚ anti-catabolite as well as an immune system enhancer (Belury‚ 2002). Health
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Carbohydrates - the Good‚ the Bad‚ the Iffy In the video “Are All Carbohydrates Equally Bad?” Dr. Jason Fung gives us a very good description of how different carbohydrates impact our body. Dr. Fung concluded that fructose‚ a sugar that found in fruits and honey‚ is much worse for us than glucose that found in bread‚ rice‚ and potatoes (Brefere & Drummond‚ 2017‚ p. 68). Even though they are both single sugars‚ they have different effects on our body. The same as people questioned for many years
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Low Carbohydrate Diets VS Low Fat Diets Concerning weight loss‚ there are countless varieties of diets‚ swearing to be the most effective‚ innovative‚ easiest‚ and fastest‚ leaving us confused; running down a path of failure to loosing the weight permanently. Unfortunately‚ loosing weight is a challenge‚ but the opportunity of success is much closer than you think. No matter what type of diet you are on‚ it is important to know that diets usually make you go on a program that is either low carbohydrate
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can and cannot pass easily across a lipid bilayer? Structure of a lipid bilayer A lipid bilayer is a membrane mainly composed of lipid molecules‚ usually a phospholipids (See Figure 1). Phospholipids are formed from 3 components :- (1) 2 fatty acids tails – these are hydrophobic; (2) a negatively-charged hydrophilic phosphate group; and (3) a glycerol backbone. The bilayer structure is favourable energetically because the hydrophobic fatty acid tails cluster together to exclude water
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