Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Chapter 15, Problem 16BS
Probiotics, foods and supplements that contain microorganisms, are thought to cure problems of the digestive tract by restoring the natural balance of its microbial community. Sales of these products total billions of dollars a year. Explore the topic of probiotics and evaluate the scientific evidence for their beneficial effects. A good starting point is the website of the U.S. Food and Drug Administration, the agency that regulates advertising claims of dietary supplements.
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The type of antimicrobial drug that would be most likely to have toxic effects in
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No one would dispute the facts that the use of antibiotics is extremely beneficial. Why then are there currently discussions around the idea that we as a society should be limiting our antibiotic use? What are the pros and cons of utilizing antibacterial and antimicrobial products (NOT antibiotics) on a daily basis? Do you agree or disagree that the use of antibiotics should be reduced and if so, how should it be done?
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Chapter 15 Solutions
Campbell Essential Biology (7th Edition)
Ch. 15 - Place these events in the history of life on Earth...Ch. 15 - DNA replication relies on the enzyme DNA...Ch. 15 - Prob. 3SQCh. 15 - Some species of cyanobacteria form symbiotic...Ch. 15 - The bacteria that cause tetanus can be killed only...Ch. 15 - How is the process used in sewage treatment...Ch. 15 - Prob. 7SQCh. 15 - Prob. 8SQCh. 15 - Prob. 9SQCh. 15 - Prob. 10IMT
Ch. 15 - For each statement below, identify which major...Ch. 15 - Prob. 12IMTCh. 15 - Imagine you are on a team designing a moon base...Ch. 15 - Interpreting Data Because bacteria divide by...Ch. 15 - State or local public health department regularly...Ch. 15 - Probiotics, foods and supplements that contain...
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- Broad-spectrum drugs target a wide variety of bacterial pathogens. Even when the broad-spectrum drug is capable of killing a target pathogen, it may not be the best treatment. Which statement best explains why a broad spectrum drug might be an undesirable treatment choice? Broad-spectrum antimicrobials are usually toxic to the host cells. Broad-spectrum antimicrobials only work if they are used shortly after the infection begins. Broad-spectrum antimicrobials may kill much of the normal microbiota. Broad-spectrum antimicrobials are not able to kill bacteria that are in their log phase of growth. Broad-spectrum antimicrobials may stimulate excess growth of the normal microbiota.arrow_forwardImagine you work for an industrial chemical company and you have been asked to design a novel cleaning agent against a group of microorganisms. Select a specific organism representative of the group you chose, gather information about it, and identify the potential "target" within the organism suitable for your cleanser to attack, discussing how your chemical will control the growth of the organism. Consider things such as concentration, amount of time needed for exposure, or anything else that would influence efficacy.arrow_forwardConduct additional research on the use of triclosan and other chemical agents in antimicrobial products today. Develop an opinion on whether this process should continue, providing evidence to support your stance.arrow_forward
- Some bacteria produce the enzyme penicillinase, which breaks the beta-lactam ring in the penicillin molecule and converts it into penicilloic acid, which is harmless to bacteria. This is an example of which of the following mechanisms of antibiotic resistance? which option below is the answer? Destruction or inactivation of the antibiotic by the microbe Preventing penetration to the target site within the microbe Alteration of the drug’s target site(s) within the microbe None of the other four answers are correct Rapid ejection (pumping) of the drug out of the microbial cellarrow_forwardThe statements are given below, which will best describe why antimicrobial drugs that affect cell wall synthesis tend to have selective toxicity when used by humans? Human cells only synthesize peptidoglycan as a food source Cell wall synthesis is a common metabolic process in humans and bacteria. Most bacteria only synthesize cell walls during their log phase of growth. Human cells do not have cell walls.arrow_forwardA compound synthesized by bacteria or fungi that destroys or inhibitsthe growth of other microbes is a(n)a. synthetic drug b. antibiotic c. antimicrobial drug d. competitive inhibitorarrow_forward
- Based on the table, what can you conclude from the said data? Title: Indicate whether the microorganism is Resistant, Intermediate or Susceptible with the antibiotic based on the measurement of their zone of inhibition. ANTIBIOTIC MICROORGANISMS Pseudomonas aeruginosa Escherichia coli Staphylococcus aureus Amoxicillin (AMC) Resistant Resistant Resistant Cephalothin (CF) Resistant Susceptible Resistant Chloramphenicol (C) Intermediate Susceptible Resistant Ciprofloxacin (CIP) Susceptible Susceptible Resistant Clindamycin (CC) Resistant Resistant Resistant Erythromycin (E) Resistant Resistant Resistant Oxacillin (OX) Resistant Resistant Resistant Penicillin G (P) Resistant Resistant Resistant Streptomycin (S) Resistant Susceptible Resistant Tetracycline (TE) Resistant Intermediate Resistant Tobramycin (TM) Susceptible…arrow_forwardAminoglycosides and ß-lactams are commonly used antibiotics. Write a short account for both antibiotics respectively regarding their antibiotic classes, ways of inhibiting microorganisms and their specificities.arrow_forwardConduct additional research on the use of triclosan and other chemical agents in antimicrobial products today. Develop an opinion on whether this process should continue, providing evidence and citations to support your stance. Citations are required for all responses.arrow_forward
- Miracle Mineral Solution (MMS) can cure AIDS, Ebola, cancer, and malaria. Or at least that the website tells potential customers. The inventor and chief advocate of the products is Jim Humble. There is little evidence to support the fact that MMS does anything to patients aside from making them feel worse than they did before they tried it. The U.S. Food and Drug Administration (FDA) is typical in its conclusions about the so-called miracle drug. The FDA is typical in its conclusions about the so-called miracle drug. The FDA identifies it as 28 percent sodium chlorite, which , when mixed with an acid (as recommended), produces a potent form of bleach. The product’s labels suggest high oral doses for the minimum effect. The FDA states the oral doses will produce nothing but nausea, vomiting, dehydration, and diarrhea. Humble claims to have “treated” 100,000 patients in Mexico and other parts of the world. It is also clear that MMS has been used on pancreatic and lung cancer patients…arrow_forwardAntibiotic resistance is a real threat to the human race. Unfortunately, it has not been given the kind of attention it deserves. So a lot of people are unaware of the seriousness of the situation and its consequences. You are expected to do a literature search about this burning issue and turn in a paper. I am not particular about the style you use for the paper. But I am particular about the fact that you must reference every statement you make if you are taking it from somewhere. I want you to use the ACS format to cite your reference Your paper must have an introduction. Your paper must read like an essay (headings are optional). If you use a question answer format I will not grade your paper. Please do not use the numbering or bullet format in writing the paper, the use of paragraphs is more appropriate. Please ensure that your paper is cohesive in font and writing style. In your paper please address the following issues · What are antibiotics? · What is antibiotic resistance? ·…arrow_forwardWhat kind of drug might be made out of an antimicrobial peptide and describe an advantage it would have over a drug like penicillin?arrow_forward
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