UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level CHAPTERS CLASSIFIED:ENZYMES 9700/2 BIOLOGY Paper 2 Structured Question AS For year 2014 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams‚ graphs or rough
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inhabit the earth. They can be found almost anywhere‚ and they come in all forms and shapes‚ some being harmful to other living things like man‚ while some are beneficial. People are often scared of being contaminated or infected by bacteria but the types of bacteria which are actually useful in maintaining health and preventing disease. CLASSIFICATION OF BACTERIA The classification of the invisible bacterial life. Bacterial classification is based on several major properties‚ CLASSIFICATION OF
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Inductive/deductive 3. The research proposal Which type of research path? What do you examine? Variable (independent/dependent/intervening) What do you examine? Hypothesis‚ null hypothesis‚ alternative hypothesis What type of explanation? Causal explanation: you need a control experiment Avoid spuriousness How to look for patterns in the data Quantitative/qualitative data Chapter 4 How and why do samples work? Sample Population Random sample Four types of non-random samples Convenience sample
Free Sampling Simple random sample Scientific method
animals and human. These fundamental discoveries have a great impact on all aspects of cell growth. Defects in cell cycle control may lead to the type of chromosome alterations seen in cancer cells. This may in the long-term open new possibilities for cancer treatment. 2. Read the FAQ about skin cancer from The Skin Cancer Foundation and the Center for Disease Control and Prevention. Also read about the leading type of skin cancer‚ basal cell carcinoma‚ squamous cell carcinoma and melanoma. a) Is
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— Development from a fertilized cell — Growth — Repair Cell division is an integral part of the cell cycle‚ the life of a cell from formation to its own division. CELL DIVISION RESULS IN GENETICALLY IDENTICAL DAUGHTER CELLS Most cell division results in daughter cells with identical genetic information‚ DNA. Cell grows‚ splits in half‚ cell grows‚ splits in half and so on…. A special type of division produces nonidentical daughter cells (gametes
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GCSE Biology B General Certificate of Secondary Education Unit B731/02: Modules B1‚ B2‚ B3 (Higher Tier) Mark Scheme for June 2012 Oxford Cambridge and RSA Examinations OCR (Oxford Cambridge and RSA) is a leading UK awarding body‚ providing a wide range of qualifications to meet the needs of candidates of all ages and abilities. OCR qualifications include AS/A Levels‚ Diplomas‚ GCSEs‚ OCR Nationals‚ Functional Skills‚ Key Skills‚ Entry Level qualifications‚ NVQs and vocational qualifications
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Section 1 : Identifying the Genetic Material Griffith’s Experiments In 1928‚ Frederick Griffith‚ a bacteriologist‚ was trying to prepare a vaccine against pneumonia. A vaccine is a substance that is prepared from killed or weakened disease-causing agents‚ including certain bacteria. The vaccine is introduced into the body to protect the body against future infections by the disease-causing agent. Griffith discovered that harmless bacteria could turn virulent when mixed with bacteria that cause
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N‚ H 4. Draw the periodic square for Helium. How many valence electrons does it have? How do you figure this out using the periodic table? Two valence e-‚ 23He‚ all the way right full shell only holds two electrons 5. What is an isotope? How are they used? Different number of neutrons‚ used in biological research (radioactive) 6. Describe the 4 main types of bonds. Put them in order from strongest to weakest. Covalent-electrons are shared between the atoms‚ can be polar or nonpolar depending
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day-to-day task such as tracking works hours and calculating benefits‚ providing valuable information and making business more efficient. An attendance-monitoring system serves as a time log that is set up as a computerized database. There are 2 types of attendance monitoring system; The Attendance monitoring system for students that tracks student’s attendance and progress. They can request student’s progress reports or transcripts. And the Attendance Monitoring system for employee that keeps records
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Population Ecology Take the theory of Darwinism and apply in business you will get the theory of Population Ecology in business. Population Ecology was merged in the seventies and founded by Michael Hnnan and John Freeman. Borrowed from biology‚ it is the process of natural selection in business and organizations with the favorable traits are more likely to survive‚ which means that organizations depend on the environment to survive. Luck‚ chance‚ and randomness play an important role
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