a.1 Eukaryotic Cell vs Prokaryotic Cell All cells can be classfied into prokaryotes and eukaryotes. Prokaryotes were the only form of life on Earth for millions of years until more complicated eukaryotic cells came into being through the process of evolution. Comparison chart All attributes Differences Similarities | Eukaryotic Cell | Prokaryotic Cell | Nucleus: | Present | Absent | Number of chromosomes: | More than one | One--but not true chromosome: Plasmids | Cell Type: | Multicellular
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Cell Biology Test 1 Tuesday‚ September 10‚ 2013 7:33 PM I. Tour of the Cell I.a. 2 cells don’t reproduce I.a.i. Most neurons I.a.ii. Skeletal muscles (too big to undergo mitosis) I.a. Cells are complexi organized I.a.i. Respond to stimuli I.a. 3 necessary components for cells I.a.i. Be able to accumulate energy from environment I.a.ii. Information storage and retrieval system I.a.iii. Boundary system to separate inside from outside I.a. Prokaryotes I.a.i. Form before the nucleus
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CONFIDENTIAL BM/APR 2010/TPT250 UNIVERSITI TEKNOLOGI MARA FINAL EXAMINATION COURSE COURSE CODE EXAMINATION TIME FUNDAMENTALS OF TRANSPORT TPT250 APRIL 2010 3 HOURS INSTRUCTIONS TO CANDIDATES 1. 2. 3. 4. This question paper consists of eight (8) questions. Answer only four (4) questions in the Answer Booklet. Start each answer on a new page. Do not bring any material into the examination room unless permission is given by the invigilator. Please check to make sure that this examination
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of the Ratio of Surface Area to Volume on Transformation Efficiency in Escherichia coli K-12 Eliana Pouchard‚ Steve Teng‚ and Cameron Wong Department of Microbiology & Immunology‚ UBC In the process of transformation‚ bact eria take up DNA fr om the environment through their cell wall. To induce competence in the cells‚ the DNA for uptake must first attach to the cell surface prio r to passing throug h the membrane. Previous studies on the effect of surface area on transformation
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repositories of bacteria/microbes ⁃ borne sterile ⁃ microbe on all surface area of the body ⁃ sterile areas: eyes‚ brain‚ spinal cord‚ bones‚ kidney‚ internal organs ⁃ mutualistic relationship: we provide site and nutrient and microbes provide vitamin‚ aid in food digestion ⁃ division of microbial world ⁃ living component: organism ⁃ prokaryotic ⁃ nucleoid area ⁃ one circular chromosome ⁃ non-membranous organelle ⁃ cell wall: peptidoglycan ⁃ binary fission ⁃ bacteria simple‚ dynamic
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Cell injury In this topic we are going to cover Cell injury Causes of cell injury Mechanism of cell injury Morphologic alterations in cell injury Morphologic types of necrosis Objectives Describe cell injury List the causes of cell injury Discuss how depletion of ATP causes cell injury Describe how mitochondrial damage cause cell injury Explain the mechanism of cell injury by free radicals Discuss how calcium ion influx cause cell injury Cell injury cell injury results when cells
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growth of abnormal cells in the body. When cells in part of the body become overactive‚ cancer begins. Many kinds of cancer start because of the out of control growth of abnormal cells. How can you prevent cancer? Research shows that there are ways to prevent cancer. Avoiding smoking cigarettes and exposure to smoke will decrease the chances of getting lung cancer. Fruits‚ vegetables and a well balanced diet are important to keep healthy and will help repair damaged cells. Colleen Huber stated
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CHAPTER 3 Response surface methodology 3.1 Introduction Response surface methodology (RSM) is a collection of mathematical and statistical techniques for empirical model building. By careful design of experiments‚ the objective is to optimize a response (output variable) which is influenced by several independent variables (input variables). An experiment is a series of tests‚ called runs‚ in which changes are made in the input variables in order to identify the reasons for changes in
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Give the term to the following definition 1. Carrier – company that transports or conveys goods – экспедиционная компания 2. freight forwarder - person or business that arranges documentation and travel facilities for companies dispatching goods to customers – транспортная компания 3. Supplier - company which supplies parts or services to another company; also called vendor 4. haulage contractor/haulier - company which carries goods by road 5. courier - company
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Which Model to Use for Cortical Spiking Neurons? Eugene M. Izhikevich Abstract—We discuss the biological plausibility and computational efficiency of some of the most useful models of spiking and bursting neurons. We compare their applicability to large-scale simulations of cortical neural networks. Index Terms—Chaos‚ Hodgkin–Huxley‚ pulse-coupled neural network (PCNN)‚ quadratic integrate-and-fire (I&F)‚ spike-timing. A. Tonic Spiking Most neurons are excitable‚ that is‚ they are quiescent
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