Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
Premium Angle of incidence Total internal reflection Geometrical optics
Human Digestion Christine Wilkes SCI 241 Natalia Woehl March 8‚ 2011 The human digestion system consists of a series of organs and glads that process the food that we eat. The digestion process starts when food enters the mouth‚ then with the chewing of food. The salivary glads help break down the food with enzymes so that it is easier to swallow. While the food is being chewed it is turned into bolos‚ which then travels down the pharynx and through the esophagus. The esophagus is the long
Premium Digestive system Digestion Stomach
but they themselves are not consumed or altered when doing so. These catalysts work best at optimum temperatures and pH’s. The temperature and pH at which the reaction occurs the quickest is the ideal condition for the enzymatic reaction. Alpha amylase converts starch into glucose and when starch is combined with I2KI indicator a dark purple solution forms. As the enzyme breaks down the starch the absorbency will decrease. The absorbency is measured through the spectrophotometer which reads the
Premium Enzyme Chemical reaction Catalysis
The effect of Lead ions on amylase activity Aim What is the effect of Lead ions on the enzyme Amylase. And does it have an inhibitory effect‚ which causes the substrate‚ in this case starch to be blocked from the reaction process in the enzyme catalyst. Also is the effect reversible or irreversible‚ which is put on the amylase. Method Apparatus and substances required Test tube holder 2% starch solution 6 boiling tubes labelled 1 to 6 1% lead nitrate solution 6 test tubes labelled A to E‚
Premium Enzyme Amino acid Protein
Books Books are the best friend a person can have. For they are the kind of friends that are never disloyal. A person is never going to feel alone or bored in the presence of books. So‚ books can be read out of passion as a hobby or to gain knowledge and information. For that‚ some books are to be tasted‚ others to be swallowed; and some few to be chewed and digested. There are certain types of books which can only be tasted. To taste a book is just to have some sensations out
Premium Digestion Book Jane Austen
The print “A Voluptuary Under the Horrors of Digestion” by James Gillray portrays Prince George overindulging himself. The photograph “Man shooting up leg” taken by Larry Clark portrays a man shooting up a drug through his leg. Elements within both of these works create a greater theme of addiction. Gillray’s depiction of Prince George sitting tranquilly in a regal chair‚ wearing a blackened shoulder to knee jacket that is on top of a whitened body suit metaphorically being inflated like a balloon
Premium Food Eating Restaurant
Reaction Rates of Barley Alpha Amylase with Starch at Specific pH ’s and Temperatures Page 1 Abstract Enzyme ’s are used as catalysts in certain reactions. They help lower the activation energy needed for the reaction to go to completion. At optimum temperature and pH the amount of collisions of substrate and enzyme is at its highest‚ any deviation from the optimum temperature and pH will result in the denaturization of the enzyme. The purpose of this experiment is to find the optimum
Premium Enzyme Amylase
Nazi Germany 1918 - 1939 November 1918: Germany surrenders and the Kaiser abdicates. Germany becomes a Republic. June 28th 1919: Treaty of Versailles Germany are forced to sign the Treaty of Versailles (November Criminals)‚ which many Germans describe as a ‘Diktat’. The Weimar Constitution (rules) is set up which makes Germany a democracy with a President‚ Chancellor and a Reichstag‚ elected by proportional representation. January 4th to January 15th: The Spartakist Uprising led by Communist
Free Weimar Republic Adolf Hitler Nazi Germany
SOFTWARE SERVICE CALLS Sam works as a manager in a national service center of a software company. The company sells packaged design software. Customers who buy the product require service in case they face any problem in the software. Sam is concerned about the capacity of the national service center to handle to number of service requests. There are two types of service requests‚ one customer submits written request which is called as STRs and two they can call national service center which are
Premium Regression analysis Prediction Exploratory data analysis
Abstract: This experimentation was to evaluate absorbance and the reaction rate of an enzyme‚ ’-amylase in starch-iodine solution. We will be testing the relationship between enzymatic reaction affected by temperature and pH. Through the testing the enzyme at different temperatures‚ and different pH levels; it would determine at which temperature and pH level the enzyme worked the most efficiently. Analyzing absorbance of the solutions with spectrophotometery will determine the reaction rate. To
Premium Enzyme PH