AS Biology - Unit 1 ------------------------------------------------- Metabolism Metabolism is a term to describe all reaction which is taking place within a cell and is separated into two types which are * anabolic = compounds being built up * catabolic = compounds being broken down ------------------------------------------------- Water The water molecule is a molecule which is made up from 2 hydrogen atoms and 1 oxygen atom. It is bounded by 2 covalent bonds and has is polar.
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Biology- Maintaining a Balance Summary 1. Most organisms are active in a limited temperature range 1. identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates Enzymes are proteins which act as catalysts in living things (they lower the amount of energy needed for a reaction‚ therefore increasing rate of reaction). Enzymes speed up reactions but are not used up by them. Enzymes catalyze only one
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HOMEOSTASIS BIOLOGY I BIO091 Prepared by: Nur Syakireen Bt. Ishak SCOPE •Definition and importance of homeostasis •Homeostatic organ •Negative and positive feedback mechanisms •Blood-glucose regulation •Thermoregulation •Osmoregulation DEFINITON & IMPORTANCE OF HOMEOSTASIS Homeostasis • Homeostasis: • is the steady state of physiological condition of the body. • it is the physiological processes by which organisms maintain a constant & balanced internal environment. • In achieving
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e TCH321 – CORPORATE FINANCE MOCK EXAM Time: 1 hour 30 minutes The exam lasts 1 hour and 30 minutes and consists of 5 questions. Approved calculators are permitted. You are not allowed to use Excel. This is a closed book exam. You are NOT permitted to access any other material in either written or electronic form. All numerical answers should be reported to TWO decimal places. To ensure the accuracy of your answer‚ you should perform all intermediate calculations to at least THREE decimal places
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Mock Exam 1stc 7th of December 2012 By Gard Detlev Oksendal Task 1 1B 1. The three most important differences between the writing styles in the two texts (Appendices 2 and 4) Difference one: The biggest difference between Appendix 2 and 4 is the fact that Appendix 2 is a short novel‚ which we don’t know if it’s true or not compared to Appendix 4 who is an informative text with clear fact and reasoning. App 2 is taken from the book “the house on mango street”‚ which clearly is a novel in
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Midterm 1 stuff (1‚ 25‚ 26‚ 27‚ 28) 2) What characterizes a prokaryotic cell? a. the lack of ribosomes b. the lack of a membrane-enclosed nucleus c. the presence of a nucleus with no DNA d. the presence of mitochondria e. having a cell wall without a cell membrane 3) Which of the following does NOT comprise a logical hierarchy of organization? a. family‚ order‚ class‚ phylum‚ kingdom b. molecules‚ cells‚ tissues‚ organ systems‚ populations c. organisms‚ populations‚ communities‚ biomes
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ACO01 – FINANCIAL ACCOUNTING MOCK EXAM Time: 90 minutes PART 1. MULTIPLE CHOICE QUESTIONS (40 points) This is a multiple choice part containing 20 questions. Each question is followed by THREE suggested answers – only one of which is correct. You will score 2 points for each correct answer. You will not lose any mark for wrong answers. You may attempt as many questions as you wish. 1. Which of the following items would most likely be classified as an operating activity? A. Issuance of debt. B
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Write your name here Surname Other names Pearson Edexcel Centre Number Candidate Number International Advanced Level Economics Unit 3: Business Economics and Economic Efficiency Friday 17 January 2014 – Morning Time: 1 hour 30 minutes You do not need any other materials. Paper Reference 6ECA3/01 Total Marks Instructions black ink or • Usein the boxesball-point pen. page with your name‚ at the top of this • Fill number and candidate number. centre in A and
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BIOLOGY ASSIGNMENT WOUND HEALING SPRAY GROUP : C4 Beta 1 GROUP’S MEMBERS : (1) Tan Jing Peng (1300433) (2) Koh Wei See (1300723) (3) Sangeeta A/P Rajindran (1200225) (4) Meera A/P Kalaiselvan (1300607) (5) Thiviya Gunalan (1300633) (6) Velaraasi A/P Mathiyalagan (1300608) DATE OF SUBMISSION : 24 January 2014 CONTENT NO. Title Page 1. Introduction 1.1 Definition of wound 1.2 Type and Causes of wound 1.3 Complications 1.4 Risk
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Cancer Epidemiology Cancer is not a single disease; it is a myriad or collection of diseases with many different manifestations as there are many different types of tissues and cell types Cancer is a disease of abnormal gene expression. Cells are constantly evolving and have the natural selection pressures to change Common biological properties of tumor cells: 1) Deregulated clonal cell growth- all cells in a tumor originated from one single cell that acquired mutations that made it deregulated
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