Potassium iodide Essays

Introduction 1.1 Aim: To determine the kinetic parameters, Vmax and Km, of the alkaline phosphatase enzyme through the determination of the optimum pH and temperature. 1.2 Theory and Principles (General Background): Enzymes are highly specific protein catalysts that are utilised in chemical reactions in biological systems.1 Enzymes, being catalysts, decrease the activation energy required to convert substrates to products. They do this by attaching to the substrate to form an intermediate; the

• Iodine Solution Weigh 7.7g of potassium iodide into a 50cm3 beaker. Use distilled water to help the iodide dissolve. Swirl for a few minutes until the iodide has completely dissolved. Using a funnel to help, pour the potassium iodide into a 500cm3 volumetric flask, make sure all traces of the solution is in the volumetric flask. Using distilled water would be a good method in order to rinse the beaker. Make the solution up to the 500cm3 mark with iodine (1% concentration) • Starch Indicator Solution

People are not truly good at heart “In spite of everything I still believe that people are really good at heart.” These words were spoken by Anne frank. She wrote these words in her diary in the attic of her father’s business. She was hiding from the Nazi’s, and hid among several other people in a confined area. Anne thought that everyone was truly good-hearted. She sadly died in a concentration camp about a year later.The truth is people are not good at heart. people are selfish, they are in

sodium and potassium in the ICF and ECF According to Hale & Hovey, 2014, intracellular fluid is liquid that is found in the cells and it makes up around 60% of fluids present in the body. The fluids found outside the cells are extracellular fluids, and they make up the remaining percentage of body fluids. Sodium ions are the major cations present in the extracellular fluids while the potassium ion is the key cation in intracellular fluids. The concentration of the sodium and potassium cations contrast

Proteins play a very important role in the human body. Our everyday lives are dependent on proteins functioning correctly. The human body contains many many proteins that must all work together perfectly or problems can occur. There are several different types of proteins also in the human body, but the one being focused on will be the Calcium Pump protein, which is located in mainly muscle cells (Klabunde, 2010). The calcium pump works by pumping calcium out of the cell (Klabunde, 2010). It

Flame Tests of the Elements Lab 1. According to your observations, which metal ion is present in your unknown samples? Explain your rationale. According to the observations recorded, the metal ion Cesium is present in the “unknown samples”. Unknown sample number five produced a violet color when placed in the flame. Unknown sample number four produced an orange color when placed in the flame. Unknown sample number one produced a violet color when placed in the flame. This evidence supports the claim

Question Do sports drinks have more electrolytes than orange juice? Variables Independent Variable: Type of Liquid Dependent Variable: The conductance of the liquid Controlled Variables: the amount of liquid, multimeter and supplies, temperature of the liquid, room, and supplies Hypothesis If I measure the conductance of each liquid, then the sports drink will have the greatest current, and the greatest amount of electrolytes. Materials Digital Multimeter Three Alligator Clip Leads 5 feet (1

Hyperkalemia What is hyperkalemia? Hyperkalemia is the medical term for high serum potassium levels. This is often caused by kidney disease, high dietary potassium intake, increased cell breakdown, insulin insufficiency, and use of certain medications (eg, NSAIDs, beta-blockers). Rapid elevations in potassium or very high potassium levels may produce symptoms such as muscle weakness, paralysis, cardiac arrhythmias, and even death. Hyperkalemia that does not respond to medical therapy may require

Question One: A. When you eat a Hungry Jack’s Ultimate Double Whopper you consume about ⅓ of daily recommended intake in kilojoules and 4/7 of fat. Now imagine adding 4 pieces of chicken nuggets, large french fries, soft drink and a caramel sundae. That’s about a whole day’s worth of energy and nutrients squashed into one meal. In Isaac’s case, an aftermath of eating a horrible days intake in one meal, he is unable to burn enough kilojoules to counter the accumulation of fat and sugar which is stored

exceed $1.5 billion a year” (Skerrett). And yet, sports drinks are made up of just water, salts, and sugary additives. These salts are known as electrolytes, and are the key characteristic of sports drinks. Examples of electrolytes include sodium and potassium, which can be found in sweat (Smolin). As athletes sweat they lose these electrolytes that play an important role in the body’s functions; they prevent muscle cramping and help nerves transmit impulses, along with also transporting fluids across

potential, which is essentially the flow of ions in and out of the neuron that differ from the normal flow, one must understand the relation of ions, especially sodium and potassium, with the neuron. Neurons are covered by membranes that regulate the inflow and outflow of chemicals, and certain chemicals, like sodium and potassium can only flow in and out via channels along the membrane. At rest, the membrane maintains a certain polarization between the inside and outside of the neuron, with the inside

temporarily changed (Berndt et al., 2011) Sodium ions are actively transported out of the axon, of the neuron, and potassium ions are actively transported in. This is performed by the sodium-potassium pump. This establishes a potential difference of charge between the inside and the outside of the axon (both molecules are positively charged but the movement of sodium ions is greater to that of potassium 3:2). The required resting potential

The main aim for the campaign ‘Adults and children over 11 should eat no more than 6g of salt a day’ was to inform and raise awareness of salt as a public health issue. The recommendation came about by The UK’s Committee on Medical aspects of Food and Nutrition Policy in 1994 and further validated in 2003 by the Scientific Advisory Committee on Nutrition. A number of research that have been carried out showed that a high salt consumption is the key reason as to why elevated blood pressure occurs

Chemical Reactions and Identifications of Unknowns Data Analysis Name: _Gloria Smith_________________________________________ Please answer the following questions with complete sentences unless a fill in the blank is given. Your answers must be typed. Do not plagiarize! Identification Tests: Flame tests are used to identify the __metal ions_ of a compound. Litmus paper is used to identify acids and bases. What general rule can be followed when using Litmus paper?

Living in a new place can be a tough thing. One of the hardest things in my life is to move along from my home country to study in Vietnam because I have to adapt myself to the new environment. After nearly two years of being in Vietnam I have found out that the unique of Vietnamese culture, friendly people, beautiful and attractive places make Vietnam charming and unique. But if you asked me what do I like most in Vietnam, undoubtedly my answer would be the food. Vietnamese food is well-known

The saponification (a reaction in making soap) process is a base (usually NaOH or KOH) hydrolysis of triglycerides to make salt (soap) and glycerol. Alkalis such as Sodium carbonate and Sodium hydroxide are used to neutralize the fatty acid and convert it to a salt. The molecules crystallize differently depending on the base used. NaOH produces a harder bar while KOH is used more frequently for liquid soaps. In some cases, Lithium soaps are formed and produce much harder soaps. There are four

Based in our experiment, we observed that an increase in the extracellular concentration of K+ increases the membrane potential of the crayfish muscle fibers thereby depolarizing these fibers. This process occurs because the ratio of K+ extracellular to intracellular was manipulated by adding KCl to the solution surrounding the muscle fibers. By increase the extracellular concentration, the K+ ions rushed inside the cell instead of their usual rushing outside. The movement of K+ ions inside the cell

metal component of the compound. The non-metal element that was in the compound did not mater. Compounds with Lithium (Li) were always red, compounds with Sodium (Na) were always yellow, compounds with Calcium (Ca) were always orange, Compounds with potassium (K) were always lilac, and compounds with Copper (Cu) were green. Going down the group there would be higher energy, which is shown through the visible color of the flame produced. It is shown in the graph how the energy of each wavelength in photon

In 2014 Kellogg’s and Jif combined their products to create a peanut butter flavored breakfast cereal, Jif Peanut Butter Cereal. Kellogg’s, who’s mission statement is Nourishing families through breakfast, so everyone can flourish and thrive each and everyday combined with Jif peanut butter brand ideal of giving picky moms what best, made the cereal have high appeal rating upon release. Kellogg’s has manufactures in 18 different countries and is marketed in over 180 countries. Kellogg’s used segmentation

reliably as table salt, that is just bit of the photo. The other part is that an impressive number people don't eat enough potassium in their eating strategies. Put in a more liberal manner, an impressive number people deplete twice as much as sodium, or more, than their bodies require while gobbling up half as much potassium that they require, or less. The affirmation of potassium to sodium ought to be a degree of around 3:1. For large number individuals, it is more like 1:3; the switch. Surrounding