Summer 2012 MNS Department BRAC University Mohakhali,Dhaka. Introduction: Lipases are the special kind of esterases belong to subclass 1 of hydrolytic enzyme class 3 and have been assigned sub-sub class 3.1.1 due to their specificity for carboxylic acid ester bonds. Lipases (triacylglycerol acylhydrolases, E.C. 3.1.1.3) are ubiquitous enzymes of considerablephysiological significance and industrial potential. Lipases catalyze the hydrolysis of triacylglycerols to glycerol and free fatty acids.
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not good. With studies showing significant decrease in the ability for are amylase enzyme to function properly this can be detrimental for any positive function we need to digest and break down what is potentially harmful. Although they were able to find glutathione has protective effect against the damage CS has on the body I still feel that it is almost inevitable that CS will ruin all function of enzymes. It is great to find cures or help for something damaging don’t get me wrong. This
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BIRLA INSTITUTE OF TECHNOLOGY AND SCIENCE, PILANI FIRST SEMESTER 2012-13 MICROBIOLOGY (BIO C241 & BIO F212) COMPREHENSIVE EXAMINATION (Part-A) Total Marks: 20 Max. Time: 45 minutes Date: 08.12.12 Max time: 1 hour Max marks: 50 Date: 03.12.12 1. The exam is divided into Part-A (Closed-book type) and Part-B (Open-book type). You are now having Part-A of the question
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The purpose of the enzyme lab conducted was to observe the chemical composition of cells. In order to do so we tested for the presence of organic molecules. Molecules are what forms when atoms bond together. Organic molecules of cells include proteins, carbohydrates, and lipids, which are composed of smaller molecules known as monomers and polymers. Polymers are joined monomers. A chemical reaction links monomers together occurs and releases a water molecule, this is called dehydration synthesis
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Practical 3 Investigation of Action of Saliva and Hydrochloric Acid in Two Carbohydrate Solution | Objective: 1. To show the action of saliva in two carbohydrate solutions. 2. To show the action of hydrochloric acid in two carbohydrate solutions. Apparatus & Equipment’s: Boiling tubes Metal test tube racks Beaker Graduated plastic dropper Water bath,~37°C Water bath,~95°C Stop watch Test tube holder Materials: Carbohydrate solution A Carbohydrate solution B Benedict’s solution 3M Hydrochloric
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Question 1 List and provide a brief discussion of the seven categories of toxic responses that a biological system may have. . There are seven categories of toxic responses: • Acute toxicity. This category is related to the immediate toxic responses that every biological system may have. This exposure of toxic substances for shorter duration and the diverse effect is high • Sub-chronic toxicity. This group results from exposure that is recurring numerous times. It is an ordinary human exposure
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Whey protein Whey protein is basically the protein contained in whey, the watery portion of milk generated as a result of producing cheese. Once considered a waste by-product, dairy companies now understand and recognize its benefits, resulting into its concentration and purification. Being an abundant source of branched-chain amino acids (BCAAs), it is used to stimulate protein synthesis. It includes these three amino acids: leucine, isoleucine, and valine. These three have been proven to be
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Recording Electrodes used in the Biomedical Instrumentation: Recording electrodes are the devices that convert ionic potentials into electronic potentials. The type of electrodes used for the measurements depends on the anatomical location of the organ. Bio-electrodes are the sensors that convert ionic conduction into electronic conduction. The purpose of bio-electrodes is to acquire bioelectrical signals such as ECG, EMG, and EEG, etc. Electrodes are mainly classified into two types [20]: 1. Perfectly
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Enzymes are natural catalysts - substances that speed up a rate of reaction without being used up. They are also proteins that are molded into various shapes that allow substrate molecules to fit inside them. The region where the substrate molecules insert themselves is called the active site. Without enzymes, biological reactions would take excessive time to take place to keep you alive. They are also significant as they aid cells to connect with one another allowing cells to maintain growth, life
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2.1.3 Application of biosurfactants Biosurfactants are important in petroleum, environmental, food, agricultural, bioprocessing, cosmetics and biological industries (Fakruddin, 2012; Nitschke & Costa, 2007; A. Singh et al., 2007). Table 2.2 shows the role of biosurfactants in different industries (A. Singh et al., 2007). Table 2.2 : The role of biosurfactants in various industries 2.2 Actinomycetes 2.2.1 Properties of actinomycetes Actinomycetes are the intermediate group between bacteria and fungi
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