Entamoeba histolytica Entamoeba histolytica I. Morphology Among the Entamoeba family‚ E. histolytica is the most invasive. This eukaryotic organism has some atypical characteristics such as: lack of organelles‚ no endoplasmic reticulum and Golgi apparatus. The cyst is usually spherical with the size that ranges from 10-20μm. In a mature cyst there are four nucleuses while in an immature cyst there are 1-2 which are occasionally seen. Its karyosomal chromatin is small‚ discrete
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1) What is the difference between pseudoscience and scientific evidence? Pseudoscience: anything being presented‚ as scientific but is not. Usually characterized by exaggerations‚ UN falsifiable claims‚ and anecdotes. Scientific Evidence: A process of inquiry followed by a body of knowledge. 2) Describe 3 main types of scientific inquiry: 3 types of scientific inquiry. Descriptive: what’s out there? Observing‚ no manipulations of variables Comparative: Seeks to describe relationships and correlations
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Microorganisms and Fungi Bacteria and Viruses Viruses Vocabulary virus: A nonliving‚ infectious particle composed of a nucleic acid and a protein coat; it can invade and destroy a cell. pathogen: A virus‚ microorganism‚ or other substance that causes disease; an infectious agent. capsid: A protein sheath that surrounds the nucleic acid core in a virus. envelope: A membrane-like layer that covers the capsids of some viruses. glycoprotein: A protein to which carbohydrate
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284 I The Johns Hopkins and the International Federation of Red Cross and Red Crescent Societies Control of communicable diseases 7 This measles ’jab’ will help prevent this child from the consequences of measles such as pneumonia‚ malnutrition‚ blindness and brain disease. Photo:Marko Kokic‚Canadian Red Cross Control of communicable diseases in emergencies Description This chapter gives an overview of common and emerging communicable disease threats among displaced populations because of natural
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I. INTRODUCTION Gastroenteritis is an inflammation of the stomach and intestinal tract that primarily affects the small bowel. The major clinical manifestations are diarrhea of varying degrees and abdominal pain and cramping. Associated clinical manifestations are nauseas‚ vomiting‚ fever‚ anorexia‚ distention‚ tenesmus (straining on defecation) and borborygmi (hyperactive bowel sounds) (Black‚ Joyce M.‚ Hawks Jane Hokanson.‚ (2009). Medical-Surgical Nursing: A clinical Management for Positive
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Intro to Microbiology: Gram stain: Gram + Gram - Exotoxin Except Listeria has endotoxin Endotoxin Except Capsules Strep pneumo VERY Dangerous: (Some Strange Killers Have Pretty Nice Capsules) 1. Salmonella 2. Strep 3. Kleibsiella 4. Hemophilus B 5. Pseudomonas 6. Nisseria-(largest capsule- most likely cause of any toxicity) 7. Citroacter Gram (+) Gram (-) N-acetyl muramic acid (Nam) + N-acetyl glucosamine (Nag) = Peptidoglycan wall Contains
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BIOL 112 Combined Study Guides for Exam – Fall 2012 Chapter 22 Study Guide 1. Briefly describe contributions of the following to Darwin: a. Aristotle: species are fixed and unchanging‚ recognized several affinities‚ or similarities among organism. Life arranged on ladder‚ most complex to least. Each form is perfected. i. In line w/ old testament view of creation b. Linneaus: developed binomial nomenclature system‚ nested classification system (KPCOFGS). Did not ascribe
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Bio Review: Unit 1 Diversity of Living Things Diversity- all the different kinds of life on Earth Species Diversity- variety of species‚ abundance of the species in a given area Genetic Diversity- variation of genes within a species Ecosystem Diversity- diverse range of habitats‚ various organisms within habitats & relationships between them Prokaryotes Eukaryote Appearance Size - Always smaller - 1000x larger DNA structure - Plasmid (one strand circular DNA) - Dna in nucleoid
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Submission to Part II of the Walkerton Inquiry The Roles and Responsibilities of Professional Engineers in the Provision of Safe Drinking Water April 2001 CONTENTS PRESIDENT’S MESSAGE 3 EXECUTIVE SUMMARY 4 1. 7 INTRODUCTION 1.1 1.2 1.3 2 THE WALKERTON INQUIRY PROFESSIONAL ENGINEERING AND DRINKING WATER SAFETY A BOUT THIS REPORT PROFESSIONAL ENGIN EERING REGULATORY FRAMEWORK 2.1 THE RULES GOVERNING PROFESSIONAL ENGINEERING 2.1.1 Historical Overview of
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Ensuring the Social‚ Political‚ and Technological Protection of Water Quality Protecting Against Bacterial‚ Parasitic‚ and Protozoan Pathogens Nathan Pankowsky Contents Abstract....................................................................................................................................................... 2 Introduction ............................................................................................................................................... 3
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