Microbiology with Diseases by Body System (5th Edition)
5th Edition
ISBN: 9780134477206
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 1, Problem 5CT
Design an experiment to prove that microbes do not spontaneously generate in milk.
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Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.
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Chapter 1 Solutions
Microbiology with Diseases by Body System (5th Edition)
Ch. 1 - Some people consider Leeuwenhoek the Father of...Ch. 1 - Prob. 1CCSCh. 1 - Some people consider Pasteur or Koch to be the...Ch. 1 - Variant Creutzfeldt-Jakob Disease Ellen screamed...Ch. 1 - Prob. 3TMWCh. 1 - Which of the following microorganisms are not...Ch. 1 - Prob. 2MCCh. 1 - In which habitat would you most likely find...Ch. 1 - Of the following scientists, who first promulgated...Ch. 1 - Which of the following scientists hypothesized...
Ch. 1 - Prob. 6MCCh. 1 - Prob. 7MCCh. 1 - Prob. 8MCCh. 1 - A scientist who studies the role of microorganisms...Ch. 1 - The laboratory of Robert Koch contributed which of...Ch. 1 - Fill in the Blanks 1. Environmental microbiology...Ch. 1 - Prob. 2FIBCh. 1 - Fill in the Blanks 3. Chemotherapy _______________Ch. 1 - Fill in the Blanks 4. Immunology _______________Ch. 1 - Fill in the Blanks 5. Infection control...Ch. 1 - Fill in the Blanks 6. Etiology _______________Ch. 1 - Fill in the Blanks 7. Epidemiology _______________Ch. 1 - Fill in the Blanks 8. Biotechnology...Ch. 1 - Fill in the Blanks 9. Food microbiology...Ch. 1 - Why was the theory of spontaneous generation a...Ch. 1 - Discuss the significant difference between the...Ch. 1 - List six types of microorganisms.Ch. 1 - Defend this statement: The investigations of...Ch. 1 - Why would a macroscopic tapeworm be studied in...Ch. 1 - Describe what has been called the Golden Age of...Ch. 1 - List four major questions that drive...Ch. 1 - Refer to the four steps in the scientific method...Ch. 1 - Prob. 9SACh. 1 - What does the term HAI (nosocomial infection) have...Ch. 1 - Match each of the following descriptions with the...Ch. 1 - Prob. 1VICh. 1 - Show where microbes ended up in Pasteurs...Ch. 1 - If Robert Koch had become interested in a viral...Ch. 1 - In 1911, the Polish scientist Casimir Funk...Ch. 1 - Haemophilus influenzae does not cause flu, but it...Ch. 1 - Just before winter break in early December, your...Ch. 1 - Design an experiment to prove that microbes do not...Ch. 1 - Prob. 6CTCh. 1 - Compare and contrast the investigations of Redi,...Ch. 1 - If you were a career counselor directing a student...Ch. 1 - A few bacteria produce disease because they derive...Ch. 1 - How might the debate over spontaneous generation...Ch. 1 - French microbiologists, led by Pasteur, tried to...Ch. 1 - Why arent Kochs postulates always useful in...Ch. 1 - Albert Kluyver said, From elephant to ......Ch. 1 - The ability of farmers around the world to produce...Ch. 1 - Using the following terms, fill in the following...
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- propose a hypothesis regarding the organisms (staphylococcus, escherichia, pseudomonas, and bacillus) that will be resistant to the most disinfectants, and why? if the hypothesis is supported, what specific experimental results will be observed? what would be the independent and dependent variable? zone size, disinfectant type, colony countarrow_forwardMicrobes can be used to decrease the use of chemical fertilisers and pesticides.Explain how this can be accomplishedarrow_forwardWhy do some household chemicals state that they will kill 99.9% of germs. Based on your knowledge of the control of micro-organisms, why does the product not state that 100% of germs will be killed?arrow_forward
- Joseph, being a know-it-all, told Mary that her method would not include all microbes. To demonstrate this, he took another 10g sample of Mary's garden and added starch. After the 1- week incubation time, he performed the same serial dilution scheme as Mary but used pour plating instead of spread plating. Shown below are the counts that he obtained after the incubation period. Compute for the CFU/g given the data below. Be sure to show complete solutions and box your final answer. Final answers should be expressed in 3 significant figures. Tube 1 135, 129 Tube 2 9.7arrow_forwardExperiment #1 From Antoinette de Senna’s Master’s thesis on ‘Screening of biological control organisms for the management of phytopathogenic fungi and foodborne pathogens on produce’. Objective: To screen three LAB (Lactobacillus plantarum, Pediococcus acidilactici, and Pediococcus pentosaceus) for antimicrobial activity against the foodborne pathogens Listeria monocytogenes, Salmonella, and Escherichia coli. Methods: 1 ml of the pathogen was placed into a petri dish. Then, 15-20 ml molten tryptic soy agar (TSA) tempered to 50°C was added. When the TSA solidified, a loopful of LAB was spotted onto the agar. Plates were incubated at 35°C for 24 hours then the zone of inhibition was measured from the boarder of the bacterial colony to the perimeter of the clearing. Results: Questions: What is the independent variable? What is the dependent variable? Suggest a control for this experiment? What is the optimal temperature range for Listeria monocyogenes? Is monocyogenes a…arrow_forwardJoseph, being a know-it-all, told Mary that her method would not include all microbes. To demonstrate this, he took another 10g sample of Mary's garden and added starch. After the 1-week incubation time, he performed the same serial dilution scheme as Mary but used pour plating instead of spread plating. Shown below are the counts that he obtained after the incubation period. Compute for the CFU/g given the data below. Be sure to show complete solutions and box your final answer. Final answers should be expressed in 3 significant figures. Tube 1 135, 129 Tube 2 9,7arrow_forward
- Explain the changes that milk undergoes when suitable starter / inoculum is added to it . How does the end product formed prove to be beneficial for human health ?arrow_forwardExplain three application of reverse osmosis in food technology.arrow_forwardProvide an example of an organism within each of the four main nutritional categories of microbes and describe how each obtains its essential nutrients. Provide evidence in support of or refuting the following statement: Microbial life can exist in the complete absence of both sunlight or organic nutrients. Polymerase chain reaction (PCR) is a technology that requires high temperatures to reproduce DNA fragments. Explain why the discovery of thermophilic archaea and their associated DNA polymerases was critical to the success of this technique. Summarize how the electron transport chain functions to produce ATP in a bacterial cell versus eukaryotic cell. Explain whether or not the term chemiosmosis accurately illustrates this process.arrow_forward
- Repeat the procedure to collect data on the plates containing E. coli (Figure 4). Record the results in table 2. 5 7 2 6 7 5 Figure 4 Two replicates of Escherichia coli treated with six antimicrobial agents plus a controlarrow_forwardAttached 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.arrow_forwardWhat is meant by recalcitrance in microbiology? Give an examplearrow_forward
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