Examination Objectives: 1. To learn how to use a microscope. 2. To study the cell structure of starch grains‚ onion cells and cheek cells. 3. To differentiate the difference between starch grains‚ onion cells and cheek cells. Introduction: Microscope is an optical instrument use to magnify micro objects that hardly or impossible to be observed by naked eyes‚ so that the objects can be studied. Compound light microscope is one of the microscopes that is often used. It has a lens or a combination
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Athlete’s foot is an infection caused when fungi invade the skin. It occurs on the bottom of feet and/or between toes and is highly contagious. If left untreated‚ it can: • Spread to other parts of the body • Invade and destroy the nail plates of your toenails • Hinder athletic performance Symptoms include burning‚ itching‚ cracking and scaling. How’d I get it? It’s most commonly picked up by walking barefoot in a locker room‚ public pool or shower area. People are most susceptible when their feet
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Bangladesh J Microbiol‚ Volume 27‚ Number 2‚ December 2010‚ pp 51-55 Original Article 24 Mohammad Hasibul Hasan‚ Asma Akter‚ Mohammad Ilias‚ Shakila N Khan‚ M Mozammel Hoq* Department of Microbiology‚ University of Dhaka‚ Dhaka-1000‚ Bangladesh. (Received 2 December 2010 ; Accepted 5 February 2011) This study was aimed at the large scale production and application of Bacillus thuringiensis (Bt) biopesticide in Bangladesh agriculture from locally available cheap raw materials. B. thuringiensis
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NIH Public Access Author Manuscript Cell Signal. Author manuscript; available in PMC 2010 February 1. Published in final edited form as: Cell Signal. 2009 February ; 21(2): 212–219. doi:10.1016/j.cellsig.2008.10.003. NIH-PA Author Manuscript NIH-PA Author Manuscript NIH-PA Author Manuscript Altered EGFR Localization and Degradation in Human Breast Cancer Cells with an Amphiregulin/EGFR Autocrine Loop Nicole E. Willmartha‚b‚ Andrea Baillob‚ Michele L. Dziubinskib‚ Kristy Wilsonc‚ David J
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Before the creation of microscopes‚ misconceptions about how organisms were originated arose. The idea of spontaneous generation‚ a theory held for nearly two millennia‚ proposed that organisms originated from inorganic matter. The lack of technology impeded on the development of cell theory‚ until the creation of the microscope. In 1663‚ Robert Hooke‚ proposed that organic matter was composed of what he called‚ cells. He was able to view these cells as he used a simple microscope‚ which allowed him
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Unit 1: fundamentals of science. Title An investigation of an onion cell using a light microscope. Aim: The aim of this investigation is to identify the cells within an onion skin using a light microscope. An onion cell is a plant cell which through the light microscope‚ it should outline the cell wall‚ cell membrane and the nucleus. Introduction: Plant cells have a cell wall and cell membrane which animal cells do not have. The cell wall provides support and is relatively rigid‚ which consists
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Historical development of the cell theory‚ in particular‚ the contributions of Robert Hooke and Robert Brown. • 1665 English scientist Robert Hooke used microscope to examine thin slices of cork and saw small box-like compartments he called cells. He was first to realise plant material had organised structure at microscopic level. (compound microscope) • 1831 Scottish Botanist Robert Brown was involved in a dispute about how pollination and fertilisation occurred in plants. During his study with orchids
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the specimen. ♥ Correctly handling the specimen ♥ Quickly transporting the specimen to the lab. ♥ Once the specimen reaches the lab it is cultured and identified. Dr.T.V.Rao MD 3 Microbe Identification • Identification measures include: ♣ Microscopy (staining) ♣ growth on enrichment‚ selective‚ differential or characteristic media ♣ specimen biochemical test (rapid test methods) ♣ immunological techniques ♣ molecular (genotypic) methods. • After the microbe is identified for clinical samples
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Comparison microscope Stereoscopic microscope Micrometer caliper chronograph A comparison microscope is a device used to analyze side-by-side specimens. It consists of two microscopes connected by an optical bridge‚ which results in a split view window enabling two separate objects to be viewed simultaneously. This avoids the observer having to rely on memory when comHistory In the 1920s forensic ballistics was waiting at its inception. In
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components‚ it is made sure that the program is managed properly and that the sputum microscopy is of good quality. The program is embraced by the government and made sure it is implemented. Health professionals are taught and trained well on the importance of the program‚ precautionary measures‚ how to deal with the TB patient‚ and‚ most importantly‚ on the proper identification and reporting of sputum microscopy
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