Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 2A
Even though the germ theory of disease was not demonstrated until 1876, why did Semmelweis (1840) and Lister (1867) argue for the use of aseptic techniques?
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Explain briefly how Koch's postulates cemented the germ theory of disease.
Q3) More than a century ago, Robert Koch realized that to prove the germ theory of disease, he would have to develop a standard for determining causation that would stand the test of scientific scrutiny.
(a) Discuss how the principles of Robert Koch's postulate play an important role in modern epidemiology.
(b) Explain how an asymptomatic patient can infect another person to the point of causing the person to experience acute symptoms and possibly death.
Which 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 disease
Chapter 1 Solutions
Microbiology: An Introduction
Ch. 1 - Review 1. How did the idea of spontaneous...Ch. 1 - Briefly state the role microorganisms play in each...Ch. 1 - Into which field of microbiology would the...Ch. 1 - Match the microorganisms in column A to their...Ch. 1 - Match the people in column A to their contribution...Ch. 1 - It is possible to purchase the following...Ch. 1 - NAME IT What type of microorganism has a...Ch. 1 - DRAW IT Show where airborne microbes ended up in...Ch. 1 - Prob. 1MCQCh. 1 - Which of the following is not a characteristic of...
Ch. 1 - Which of the following is the most important...Ch. 1 - Recombinant DNA is a. DNA in bacteria. b. the...Ch. 1 - Which of the following statements is the best...Ch. 1 - Which of the following is a beneficial activity of...Ch. 1 - It has been said that bacteria are essential for...Ch. 1 - Prob. 8MCQCh. 1 - Spallanzanis conclusion about spontaneous...Ch. 1 - Which of the following statements about E. coli is...Ch. 1 - How did the theory of biogenesis lead the way for...Ch. 1 - Even though the germ theory of disease was not...Ch. 1 - Prob. 3ACh. 1 - Find at least three supermarket products made by...Ch. 1 - People once believed all microbial diseases would...Ch. 1 - Prob. 1CAECh. 1 - In 1864, Lister observed that patients recovered...
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- This article highlights a young doctor at Elmhurst Hospital during the beginning of Covid-19 pandemic. Dr. Zikry is quoted as saying: “It’s become very clear to me what a socioeconomic disease this is...”. In addition, the textbook discusses the personal variables and socioeconomic status (SES) that are used to find patterns in disease (pp.112-118). What do you think Dr. Zikry meant by referring to the SES of his patients? Why was it important to find a pattern of personal variables and SES among the of victims of Covid-19 at the beginning of the pandemic?arrow_forwardWhat is spontaneous generation theory and how was it refuted? Explain the theory of biogenesis and its relevance to the germ theory of disease.arrow_forwardWhat are Koch’s postulates and what is their importance?arrow_forward
- Robert Koch developed a set of criteria (postulates) for conclusively demonstrating the aetiology (specific cause) of an infectious disease. Which of the following is not a postulate? The infectious agent must be isolated and cultured in vitro The disease is reproduced when a pure culture of the infectious agent is inoculated into a new susceptible host The infectious agent can be recovered from the experimentally-infected host The infectious agent is present in most cases of the diseasearrow_forwardGriffith's Experiments using Streptococcus pneumonia rough and smooth strains concluded which of the following? a) DNA is the Molecule of Inheritance b) Some, yet unknown, factor of inheritance could be transferred from one bacteria to another. c) Protein if the Molecule of Inheritance d) Heat treating bacteria has NO effect on its virulencearrow_forwardThe 2020 flu shot is an _____ virus vaccine made against three _____ of influenza predicted to cause this season's epidemic. A)attenuated; strains B)inactivated; strains C)inactivated; species D)attenuated; speciesarrow_forward
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