ANIMAL CELL MODEL ORGANELLE FUNCTIONS Cell membrane: Separating the interior of the cell from the outside environment‚ the cell wall is selectively permeable‚ only letting certain things through. It is involved in a variety of cellular processes‚ such as cell adhesion and cell signalling. Cytoplasm: The fluid that fills the cell‚ cytoplasm uses its dissolved enzymes to break down larger molecules. The products can then be used by the organelles that are suspended in the cytoplasm. Cytoskeleton:
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Objective: The main objective for this lab was to use the Bradford and DC Protein Assay in order to determine our concentration of E. Coli BL21(DE3) lysate. Principle of Methods: To accomplish this objective‚ each pair of lab partners received an E. Coli lysate sample which we had to thaw by warming it with our hands and centrifuge it. We extracted a total of 12 samples with known concentrations of bovine serum albumin and 10 samples of different amounts of lysate put into them. Using the different
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Why change my weight? Is there any personal reason why you should change your weight? As a result‚ every individual have his/her own reason for losing or gaining weight. The most likely reason why many of us want to get rid of our current weight may be because of physical‚ emotional‚ or psychological health problems. Examine for yourself why you want to change. For example‚ the reason why I want to change my weight is because…. • I want to control my blood sugar and lessen my disease symptoms
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one of two very similar pentose rings. Ribonucleic acids contain the sugar ribose. Deoxyribonucleic acids contain the sugar deoxyribose. The only difference between these two sugars is that deoxyribose contains one oxygen atom less than ribose. Pentose sugars are essential because they are involved in linking different nucleotides together by condensation reactions. The Nitrogen-Containing Bases There are two types of bases found in nucleic acids. The purine bases have two nitrogen containing rings
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ICSE Class X Chapter 5 Hydrogen Chloride and Hydrochloric Acid Hydrogen chloride (HCl) : Formula : HCl Nature : Covalent. Molecular Mass : 36·5u [i.e. HCl = 1 + 35·5 = 36·5] Occurrence : (i) Present in gastric juices. (ii) Present in volcanic gases. Laboratory preparation of HCl gas : Hydrogen chloride gas is prepared in laboratory by heating conc. H2SO4 with NaCl. NaCl + H2SO4 Heat → NaCl + NaHSO4 Heat → NaHSO4 + HCl Sodium hydrogen sulphate Na2SO4 + HCl
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How does acid precipitation affect marble and limestone buildings? Acid rain is a type of precipitation that is characterised by containing contaminating substances such as sulphuric and nitric acid‚ both of which have harmful effects on the environment. Both marble and limestone are extremely vulnerable to the damages done by acid rain due to their components. These materials contain calcite‚ a substance that easily reacts and dissolves with acid. Acid rain is the cause of the destruction of many
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title of video on first line (do not include the name of the course‚ my name‚ the date‚ etc.) 5. two to three pages (2 full pages minimum) 6. double spaced 7. 12 point font 8. 1 inch margins on all four sides (this may require you to manually change the default settings on the Word processing software) 9. ✓Don’t forget‚ you are also learning how to write in this class. Proofread Proofread Proofread! 10. ✓Do review the documents on writing in the Student Tips folder of the Resources section
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To investigate how does the concentration of Hydrochloric acid affect the rate of reaction? Outline I aim to discover how different concentrations of Hydrochloric acid influence the rates of reaction. In order to carry out this investigation I have decided to use marble chips‚ which I will vary the sizes as powder‚ small chips and large chips. I will also be changing the concentration‚ the different concentrations are as follows 0.2m‚ 0.5m‚ 1m‚ 1.5‚ 2m. I have chosen these concentrations as they
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GENERAL PSYCHOLOGY I. OVERVIEW ON PSYCHOLOGY 1. William James (1890) – Published Principles of Psychology 2. Wilhelm Wundt (1879) – Published the first Psychological lab in Leipzig 3. Sigmund Freud (1900) – Published Interpretation of Dreams 4. Alfred Biret & Theodore Simon (1905) – Developed the 1st standardized intelligence 5. Ivan Pavlov(1906) – Published the results of his learning experiments with dog tests 6. John Watson (1973) – Wrote his book on behaviorism‚ promoting the importance of
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CRITICISM OF “MIGHT IS RIGHT” BY RAGNAR REDBEARD BY OKOYE FRANKLIN NNAEMEKA PJPS/NAU/010/48 08066129459 NNAMDI AZIKIWE UNIVERSITY‚ AWKA. JUNE 2013 1 TABLE OF CONTENTS TITLE PAGE ---------------------------------------------------------------i CERTIFICATION ----------------------------------------------------------ii APPROVAL -----------------------------------------------------------------iii DEDICATION --------------------------------------------------------------iv ACKNOWLEDGEMENT ------------------------------------------------v
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