How Cancer Cells Differ From Normal‚ Healthy Cells Cancer cells are very different from healthy cells. Healthy cells grow and divide like they are suppose to‚ whereas cancer cells do not grow and divide in a healthy way. So instead of acting in healthy ways as the body needs to function the cells begin to grow in unhealthy ways and affect all other cells. (http://biology.about.com/od/cellbiology/ss/normal-cells-cancer-cells.htm) There are many things that can happen to us that can cause our healthy
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Cervical smears should be taken in a proper way by an experienced person so as to avoid an inadequate material.44 Because of the phases that precede the lesion in the natural progress of invasive cervical cancer‚ and because they can be easily discovered and treated‚ the disease is well suited to screening programs. It is now recommended that all patients with abnormal cytology should undergo further investigations.4 Annual Pap smear screening has been favoured over less frequent screening in the
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Bacterial Smear and Simple Staining I. INTRODUCTION Bacterial smears are prepared for the purpose of viewing microorganisms under the microscope. Visualization of microorganisms in the living state is very difficult‚ not just because they are minute‚ but because they are transparent and almost colorless when suspended in an aqueous medium. A bacterial smear is a dried preparation of bacterial cells on a glass slide. Smears may be made from a dry culture (from a slant‚ stab or plate)‚ or from a wet/liquid
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Total Marks: 50 Name Instructions: a) Turn-off all mobile communication devices (cell-phones‚ PDAs‚ laptops‚ etc.) b) There are 25 (twenty five) problems. You have to attempt all of them. c) Each problem has 5 (five) possible answers. Choose the correct answer‚ and fill the appropriate oval on the answer sheet. d) There is no negative marking. e) Do not fill more than one oval for any problem. f) It is preferable that you use a pencil to answer the problems. g) Non-programmable calculators can be used
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LA Times contributor Patt Morrison‚ in her opinion article titled “How Your Cell Phone Betrays You‚” effectively claims that stores are morally wrong for using customer’s cell phone information without their consent. Firstly‚ she supports her claims by asserting that many stores‚ including the popular Nordstrom‚ are already using tracking customers throughout the store and obtaining their cell phone information. She uses examples to appeal to the reader’s logical thinking when stating‚ “Nordstrom
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Every cell in the body goes through a life cycle. Cells grow and divide to replace cells that are lost because of normal wear and tear or injury to them. All cells grow and die at different rates. The cell cycle can be divided into three periods: interphase‚ the mitotic phase‚ and cytokinesis. During interphase‚ the cell grows‚ accumulating nutrients needed for mitosis‚ preparing it for cell division and duplicating its DNA. During the mitotic phase‚ the cell splits itself into two distinct daughter
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OBSERVATION OF BACTERIAL CELLS VIA MICROSCOPE In this experiment‚ we have learned several basic molecular biology techniques. Here they are; Simple staining: Only one type of dye used for simple staining and it stains all cells the same color. Creating contrast between cell and background to observe cell morphology is aimed. Differential staining: A differential stain uses more than one dye and stains different kinds of organism with different colors. Positive staining: If cell itself is stained it
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1.1How Archaea is similar to Eukaryotes and how they differ from Bacteria………..02 1.2: Importance of co-ordination between sub cellular organelles in Eukaryotic cell‚ using protein synthesis and transportation within cells…….…………………04 1.3 Explain the role of different types of transporters in cell membrane……………....07 Task 02 2.1 Explain how in each stage of Interphase‚ mitosis and controlling agents involved to contribute to the formation of identical cells………………….12 2.2 The
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22-year-old female presents to your office for a preventive visit. The patient never had a PAP smear in the past and she is sexually active since she was 21. You recommended that the according to the American Congress of Obstetricians and Gynecologists (ACOG) recommendations she should: A. Wait until she is 24-year-old (3 years after first becoming sexually active) before she has to do a PAP smear B. Do PAP smear in this visit and if normal then repeat in 1 year C. Do PAP smear in this visit and if normal
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ROD CELLS Rod cells‚ or rods‚ are photoreceptor cells in the retina of the eye that can function in less intense light than the other type of visual photoreceptor‚ cone cells. Rods are concentrated at the outer edges of the retina and are used in peripheral vision. On average‚ there are approximately 125 million rod cells in the human retina.[1] More sensitive than cone cells‚ rod cells are almost entirely responsible for night vision. STRUCTURE AND FUNCTION Rods are a little longer and leaner
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