Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Chapter 3.4, Problem 1NP
Summary Introduction
Introduction:
Disinfection process is used for the removal of pathogenic bacteria. However, it does not remove all the microbial forms. It cannot remove microbial spores. For example, alcohol can kill pathogenic microbes. It can be applied only to inanimate objects and can reduce the number of bacteria. Alcohol is the best antiseptic that is easily available and inexpensive.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
For bacteria to infect cells, it produces an extracellular protease that
destroys tissue structure particularly transmembrane proteins. The
bacteria are grown in culture so that the protease can be isolated.
Then the culture is centrifuged. In which sample would the
protease be most likely found?
A. Precipitate containing whole bacteria
B. Cell-free filtrate; that is, the supernatant
C. The lysate of the whole culture
D. Lysed bacteria only
E. All of these
Attached below is the study about the effects of handwashing and the effectiveness of soap against bacteria. What conclusions can be generated from this result? (see rubrics
for the point marking)
A before washing hands
C
10 second hand wash
B
D
hot water only rinse
30 second hand wash
Figure 8: Agar plates with bacteria A) before washing hands B) after rinsing hands in hot water C) After washing
hands with soap for 10 seconds and D) after washing hands for 30 seconds. Images show that the number of
bacteria on the plate are not greatly reduced after a hot water rinse or 10 second handwash but bacterial levels are
reduced after a proper hand wash for 30 seconds.
How does fluoroquinolone antibiotic drug treat infections?
a. Blocking folic acid synthesis
b. Blocking protein synthesis
c. Inhibiting nucleic acid synthesis
d. Weakening bacterial cell wall
Chapter 3 Solutions
Microbiology Fundamentals: A Clinical Approach
Ch. 3.1 - List the structures all bacteria possess.Ch. 3.1 - Identify three structures some but not all...Ch. 3.1 - Describe three major shapes of bacteria.Ch. 3.1 - Provide at least four terms to describe bacterial...Ch. 3.2 - Describe the structure and function of six...Ch. 3.2 - Prob. 6AYPCh. 3.2 - Q. Device-associated infections are very common...Ch. 3.3 - Differentiate between the two main types of...Ch. 3.3 - Prob. 8AYPCh. 3.3 - Prob. 9AYP
Ch. 3.3 - Prob. 2MMCh. 3.4 - Identify seven structures that may be contained in...Ch. 3.4 - Prob. 11AYPCh. 3.4 - Prob. 1NPCh. 3.5 - Compare and contrast the major features of...Ch. 3.6 - Differentiate between Bergeys Manual of Systematic...Ch. 3.6 - Name four divisions ending in cutes and describe...Ch. 3.6 - Define a species in terms of bacteria.Ch. 3 - Archaea a. are most genetically related to...Ch. 3 - Prob. 2QCh. 3 - Suppose an argument in your city has erupted about...Ch. 3 - Prob. 4QCh. 3 - As a supervisor in the infection control unit, you...Ch. 3 - Prob. 6QCh. 3 - Prob. 7QCh. 3 - Prob. 8QCh. 3 - Bacteria and archaea have a much greater diversity...Ch. 3 - Prob. 10QCh. 3 - Bacteria have been found to change the structures...Ch. 3 - Bacterial and archaeal chromosomes are not...Ch. 3 - Prob. 13QCh. 3 - The results of your patients wound culture just...Ch. 3 - We know that bacteria/archaea and their genetics...Ch. 3 - Find the true statement about biofilms. a. They...Ch. 3 - Suggest more than one reason why bacteria may...Ch. 3 - Construct arguments agreeing with and refuting...Ch. 3 - Which of the following would be used to identify...Ch. 3 - During the cold war between the Soviet Union and...Ch. 3 - During the cold war between the Soviet Union and...Ch. 3 - From chapter 2, figure 2.18. Explain why some...
Knowledge Booster
Similar questions
- What is the difference between an antiseptic and a disinfectant? A. Antiseptics are used against microbes on non living objects, disinfectants are used on living tissue. B. Antiseptics are used against microbes outside the body, and disinfectants are used inside the body. C. Antiseptics are used against microbes inside the body, disinfectants are used outside the body. D. Antiseptics are bactericidal against microbes, disinfectants are bacteriostatic. E. Antiseptics are used against microbes on living tissue, disinfectants are used on non living objects.arrow_forwardA person in England arrives at a medical clinic with a fever and swollen lymph nodes shortly after returning from a visit to New Mexico. For which bacteria should the doctor test the patient? a. Salmonella enterica b. Borrelia burgdorferi c. Clostridium botulinum d. Yersinia pestisarrow_forwardA glass flask is rinsed and autoclaved after use. It was then filled with sterile media in a sterile environment and covered. A few days, microbial growth appears in the flask. Assume the media and sterile environment is guaranteed to be sterile. What most likely caused the growth in the flask? a. The flask has to be rinsed with bleach before autoclaving b. A portion of the flask was not exposed to the steam c. Autoclaves only sanitize equipment, so you cannot expect the flask to be sterile d. Autoclaving inhibits growth, but does not kill microbesarrow_forward
- A bacterium has the following characteristics: I. It adheres to the human intestinal lining using a feature that protects it from phagocytes , bacteriophages, and dehydration. II. It can survive being boiled. III. It contains no plasmids and relatively little peptidoglycan. Which of the following characteristics allows this bacteria to survive in a human who is taking penicillin pills? A. gram-negative cell wall B. peptidoglycan in the cell wall C. lipopolysaccharides in the cytoplasm D. long polypeptides in the cell wallarrow_forwardWhen Miescher added the alkaline solution, the cells lysed. What does this mean? A. They mutliplied. B. They became stronger. C. They broke open. D. They froze in time.arrow_forwardA bacterium is grown in an environment with tryptophan added to the medium. Describe how the bacteria would respondarrow_forward
- Select a statement that is not correct about bacterial fimbriae? A. they protect the cell from dehydration B. they are called attachment pili to distinguish them from the pili used to transfer DNA during conjugation C. they are used to attach the cell to its substrate or to other prokaryote D. they are hair-like projections that aid in attachment.arrow_forwardwas used by Joseph Lister to clean wounds and surgical instruments: A.Antibiotics b.Chlorine water Carbonic acid dAntitoxins e. Carbolic acid Which one of the following does not apply to the bacterial glycocalyx? It is not responsible for virulency b .It allows the organism to resist drying C. It may allow an organism to resist phagocytosis d.It is composed of carbohydrates E. It is enclosed by the cell wallarrow_forwardWhat are the major components of extracellular matrix? A. Protein fibers + GAGs B. Protein fibers + GAGs + glycolipids C. Protein fibers + GAGs + glycoproteins D. Protein fibers + GAGs + phospholipidsarrow_forward
- MacConkey (MAC) Agar is used to isolate gram-negative enteric bacteria.Peptone provides nutrients necessary for growth.Bile salts and crystal violet inhibit the growth of gram positive bacteria.Lactose is a carbohydrate. When metabolized, colonies turn the medium pink.Which organism/s will grow in the medium? a. Escherichia coli b. Pseudomonas aeruginosa c. Staphylococcus aureus d. Escherichia coli & Pseudomonas aeruginosa e. Pseudomonas aeruginosa & Staphylococcus aureusarrow_forwardChoose the combination of answers that most accurately completes the statement.An example of an agent that lowers the surface tension of cells is a. phenol c. alcohol b. chlorine d. formalinarrow_forwardIn a new batch of culture medium, a group of sub-lethally wounded bacterial cells were transferred. Determine which stage of bacterial growth it will be in? a. Lag Phase b. Log Phase c. Stationary Phase d. Death Phasearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage LearningEssentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:Cengage
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Essentials of Pharmacology for Health Professions
Nursing
ISBN:9781305441620
Author:WOODROW
Publisher:Cengage