Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Chapter 14, Problem 1A
Summary Introduction
Introduction:
Anto de bary elucidated phytopthora infestans, which is a causative organism from blight of potatoes, plant pathology. De Bary focused on developmental biology but not agriculture biology. He focused on fungal development and spontaneous generation. But Robert Koch worked on specific microorganism which causes infectious disease isolated from cultured artificial medium termed Koch’s postulates.
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Chapter 14 Solutions
Microbiology: An Introduction
Ch. 14 - Prob. 1RCh. 14 - Define symbiosis. Differentiate commensalism,...Ch. 14 - Prob. 3RCh. 14 - Prob. 4RCh. 14 - Distinguish symptoms from signs as signals of...Ch. 14 - How can a local infection become a systemic...Ch. 14 - Prob. 7RCh. 14 - Prob. 8RCh. 14 - Acquiring a closely related strain causes severe...Ch. 14 - Prob. 10R
Ch. 14 - Prob. 1MCQCh. 14 - All members of a group of ornithologists studying...Ch. 14 - Prob. 3MCQCh. 14 - Prob. 4MCQCh. 14 - Prob. 5MCQCh. 14 - Prob. 6MCQCh. 14 - Prob. 7MCQCh. 14 - Prob. 8MCQCh. 14 - Prob. 9MCQCh. 14 - Prob. 10MCQCh. 14 - Prob. 1ACh. 14 - Florence Nightingale gathered the following data...Ch. 14 - Name the method of transmission of each of the...Ch. 14 - Prob. 4ACh. 14 - Three days before a nurse developed...Ch. 14 - Three patients in a large hospital acquired...Ch. 14 - Prob. 3CAECh. 14 - Mycobacterium avium-intracellulare is prevalent in...
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- The following are the limitations of Koch's postulates EXCEPT: A. some pathogens cannot grow on artificial media and therefore cannot be identified as the causative agent of the disease B. some diseases involve multiple pathogens which produce similar symptoms making it difficult to pinpoint the causative agent C. some diseases are host-specific and re-inoculation may pose ethical concerns D. some microorganisms are present in the body fluids of the infected animal which make them difficult to be culturedarrow_forwardWhy are Koch’s postulates not sufficient to establish the cause of all infectious diseases?arrow_forwardGive typed full explanation Which diseases did doctors need to rule out in the process of identifying Zika as the cause of infection? more than one answer could be correct a) Plasmodium falciparum, P. vivax, P. ovale, & P. malariae b) Chikungunya virus c) Ebola virus d) Dengue virus e) Rabies virusarrow_forward
- It appears that infection by Plasmodium is negative for Anopheles. We also showed in class that the mosquito immune system can be upregulated to limit or terminate Plasmodium infection of these mosquitoes. So why don’t we see natural selection to upregulate the mosquito’s immune system and get rid of that parasite? Best explanation. Upregulating the immune system comes at the cost of shortening life span and thus (most probably) reproductive success Having a Plasmodium infection is negative for the mosquito, but it protects against much worse pathogens Upregulation of the immune system in Plasmodium leads to more rapid development of Plasmodium, causing even greater problems for Anopheles Statement is wrong. This upregulation was done with genetic engineering in a lab. Alleles to do something like that do not exist in naturearrow_forwardWhich of the following is NOT true about Koch's postulates? First developed by Robert Koch, the pioneering German microbiologist In the first step, the microbe that causes a naturally occurring disease is cultured from a "wild" (non-laboratory) animal which has that disease None of the other four answers (All are true about Koch's Postulates) They represent a process for showing a causal association between a specific microbe and a disease If the same microbe from a diseased "wild" (non-laboratory) host causes the same disease in a lab animal and it can be cultured from that lab animal, this proves that the microbe is the cause of the naturally occurring diseasearrow_forwardIn the early 1900s, cities such as Philadelphia reduced the incidence of typhoid fever by: Question 1 options: A) isolating human carriers. B) using tertiary water treatment systems. C) filtering municipal drinking water through sand-bed filters. D) requiring residents to boil drinking water.arrow_forward
- Zika virus infection, a zoonotic disease, produced somewhat sizable outbreaks recently in certain areas of Central America, but not in the U.S (although there were some infected individuals uncovered in the U.S.). Provide two plausible explanations for this dichotomy, and explainarrow_forwardExplain how the following statement is inaccurate:“Antibiotics have created drug resistance in MRSA.”arrow_forwardWhen looking across all skin habitats (oily/sebaceous areas, dry areas, and moist areas), actinobacteria dominate the skin microbiome and have the highest relative abundance overall. Which of the following statements help explain this? A.The actinobacteria Corynebacterium species dominate moist skin areas .B. The actinobacteria Propionibacterium/Cutibacterium dominate sebaceous areas. C. Bacteria are more abundant in dry skin areas than sebaceous areas. D. The actinobacteria micrococcus dominate dry skin areas .E. Bacteria are more abundant in moist skin areas than dry areas. F. Bacteria are more abundant in sebaceous skin areas than dry areas.arrow_forward
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