Theories and Perspectives in Biology – Biochemistry and Metabolism. Metabolism is the term used to describe the chemical reactions that take place inside a cell. Metabolic pathways are a series of these reactions catalysed by enzymes‚ and are carried out in small steps so that the product of one step can be the substrate of the next. The synthesis of larger molecules from this is called anabolism (e.g. constructing tissue) and the breaking down of these larger molecules is called catabolism (Dow
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DIGESTION Cooking vs. Digestive Processes Cooking Processes: Grilling Microwaving Frying Roasting Barbeque Boiling Steaming Poaching Digestive Processes: Ingestion Propulsion Mechanical digestion Chemical digestion Absorption Defecation Salivary Digestion SALIVARY DIGESTION Salivary Glands the salivary glands are a collection of accessory organs surrounding the mouth that secrete a fluid called saliva. Saliva consists of 99.5 % water and 0.5 % solutes. medium for dissolving
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Biochemistry Fats‚ Diet‚ and Heart Disease ‘Fat’ can sometime be a word that gives people the chills when they hear about it. It is one of the three main sources of calories to our diet and a major part of ones dietary requirement. There are three kinds of fat: saturated‚ polyunsaturated and monounsaturated. The degree of saturation is dependent on the amount of double and triple bonds in the chemical makeup. Saturated fats are known to increase the body’s levels of serum (blood) cholesterol
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A review of the contemporary knowledge of bovine tuberculosis and government policy in Iran Keyvan Tadayon a‚b‚ Ken Forbes b‚ Davoud Soleimani c‚ Reza Aref Pajoohi a‚ Bahman Marhmati c‚ Jamaloddin Javidi c‚ Rouholah Keshavarz a‚ Kioomars Soleimani a‚ Ali Shakibamehr a‚ Mohammad Mohammad Taheri a‚ Shojaat Dashti Pour a‚ Nader Mosavari a‚* a Razi Vaccine & Serum Research Institute‚ Karaj‚ Iran b Medical Microbiology Department‚ Medical School‚ Aberdeen University‚ Aberdeen‚ Scotland‚ UK c Iranian
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Wine is of great importance in our society today‚ and has been so for thousands of years. Grapes have been cultivated for wine production in the Near East since 4000BC‚ and in Egypt since 2500BC. They were spread from the Black Sea to Spain by the Greek Empire‚into Germany by the Romans and to the New World by Columbus. Wine has had religious significance as both an offering and a sacrament since Biblical times‚ and this has helped its development. Today an enormous variety of wines are available
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Biochemistry Lecture Exam 1 Study Guide Chapter 1: Biochemistry: An Introduction I. Introduction a. Biochemistry: the study of molecules and chemical reactions of life b. Divided into 3 principal areas: 1. Structural chemistry of components of living matter & relationship of biological function to chemical structure 2. Metabolism – total chem reactions that occur in living matter; building & breaking down of molecules 3. Chemistry of processes & substances that store & transmit biological
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Unit 1: Biochemistry Review Chemical Bonding Three types of bonds Ionic bond: 2 oppositely charged atoms (Na and Cl) Polar covalent: Unequally shared electrons (H and O) Non polar covalent: Equally shared electrons (C and C) or similar electronegativity Electronegativity and chemical bonding Electronegativity is a measure of the strength in which an atom can attract electrons. A difference of < 0. 5 is non polar covalent bond A difference of 0.5 – 1.7 is polar covalent bond A difference of > 1
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This could then be focused by the student as follows: “Does ethanol concentration affect the activity of bovine catalase?” It is not sufficient for the student merely to restate the research question provided by the teacher. Variables are factors that can be measured and/or controlled. Independent variables are those that are manipulated‚ and the result of
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Endocrine System: Biochemistry‚ Secretion and Transport of Hormones 1. Place the following hormones into one of the three categories of hormones (peptides‚ amines or steroids): T4 (thyroxin)‚ estradiol‚ norepinephrine‚ insulin‚ aldosterone‚ glucagon‚ cortisol‚ growth hormone‚ T3 (triiodothyronine)‚ epinephrine‚ testosterone and vasopressin (ADH). |Peptides |Amines |Steroids | |Insulin
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Role of Ammonia in Hepatic Encephalopathy | Anastasia Kepler | 11/13/2012 | Math 15 Todd Olsen Tues‚ Thurs‚ Friday | The human liver is truly amazing‚ however little is ever said about the organ. Most people probably wouldn’t be able to locate their liver if they’re asked to do so. The second largest organ in the body and weighing about 3 pounds‚ the liver is located right under your rib cage on the right side of your body. It is the only organ that is able to regenerate. While
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