Microbiology with Diseases by Body System & Modified MasteringMicrobiology with Pearson eText -- ValuePack Access Card -- for Microbiology with Diseases by Body System Package
1st Edition
ISBN: 9780133857122
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 9, Problem 11CT
Summary Introduction
To answer:
Whether Gram-positive bacteria or Gram-negative bacteria is more susceptible to antimicrobial drugs.
Introduction:
The antimicrobial drugs can be natural, synthetic, or semi-synthetic. These drugs act on the fungi, bacteria and viruses. These drugs are also used to control and eradicate the microbial growth. For example, some drugs are available in powder form that is applied on the
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Chapter 9 Solutions
Microbiology with Diseases by Body System & Modified MasteringMicrobiology with Pearson eText -- ValuePack Access Card -- for Microbiology with Diseases by Body System Package
Ch. 9 - Why does milk eventually go bad despite being...Ch. 9 - Prob. 1EDCSCh. 9 - Why are BSL-4 suits pressurized? Why not just wear...Ch. 9 - Prob. 3TMWCh. 9 - Prob. 4TMWCh. 9 - Prob. 1MCCh. 9 - Prob. 2MCCh. 9 - Prob. 3MCCh. 9 - Prob. 4MCCh. 9 - Prob. 5MC
Ch. 9 - Prob. 6MCCh. 9 - Prob. 7MCCh. 9 - Prob. 8MCCh. 9 - The presarva1icn of beef jerky from microbial...Ch. 9 - Prob. 10MCCh. 9 - Which of the following substances would most...Ch. 9 - Which of the following adjectives best describes a...Ch. 9 - Prob. 13MCCh. 9 - Prob. 14MCCh. 9 - Prob. 15MCCh. 9 - Prob. 16MCCh. 9 - Which of the following disinfectants acts against...Ch. 9 - Which of the following disinfectants contains...Ch. 9 - Prob. 19MCCh. 9 - Prob. 20MCCh. 9 - Describe three types of microbes that are...Ch. 9 - Compare and contrast four tests that have been...Ch. 9 - Prob. 3SACh. 9 - Why do warm disinfectant chemicals generally work...Ch. 9 - Why are Gram-negative bacteria more susceptible to...Ch. 9 - Describe five physical methods of microbial...Ch. 9 - Prob. 7SACh. 9 - Prob. 8SACh. 9 - Compare and contrast desiccation and...Ch. 9 - Prob. 10SACh. 9 - Prob. 11SACh. 9 - Prob. 12SACh. 9 - Prob. 13SACh. 9 - What are some advantages and disadvantages of...Ch. 9 - Prob. 15SACh. 9 - Calculate the decimal reduction time (D) for the...Ch. 9 - Prob. 2VICh. 9 - Prob. 1CTCh. 9 - Prob. 2CTCh. 9 - Prob. 3CTCh. 9 - Prob. 4CTCh. 9 - Over 1000 people developed severe diarrhea, and at...Ch. 9 - Prob. 6CTCh. 9 - Prob. 7CTCh. 9 - Prob. 8CTCh. 9 - Prob. 9CTCh. 9 - Prob. 10CTCh. 9 - Prob. 11CTCh. 9 - Where should you place a sterilization indicator...Ch. 9 - Why is liquid water necessary for microbial...Ch. 9 - Prob. 14CTCh. 9 - During the fall 2001 bioterrorist attack in which...Ch. 9 - What common household antiseptic contains a heavy...Ch. 9 - What is the phenol coefficient of phenol when used...Ch. 9 - Prob. 1CM
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- The 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_forwardWhich of the following types of antimicrobial drugs make microbes more susceptible to osmotic pressure? 1) drugs that inhibit nucleic acid synthesis O 2) drugs that inhibit metabolic pathways 3) drugs that inhibit cell wall synthesis 4) drugs that block a pathogen's recognition of its host 5) drugs that inhibit protein synthesisarrow_forwardThe type of antimicrobial drug that would be most likely to have toxic effects in humans based on the premise of selective toxicity when treating microbial infection would be a drug that O 1) inhibits the synthesis of the cell wall O 2) inhibits metabolic pathways O 3) disrupts the cytoplasmic membrane 4) inhibits protein synthesis 5) All of the above have equal potential to be toxicarrow_forward
- List the four cellular agents of bacterium that most antimicrobial agents such as antibiotics target. Explain how each area is affected by the agent.arrow_forwardList all the antibiotics in the above table that work through destroying the bacterial cell wall. (if there are none listed please state that)arrow_forwardWhen heat treatment is used as to control microbial growth, what is the immediate impact of this increased temperature? The microbe's DNA is digested and the microbe can no longer reproduce. The microbe is unable to attach to host cells. The microbe is unable to synthesize and secrete toxins. The microbe's food is destroyed and the microbe is without a food source. The microbe's proteins are denatured and the membranes are disrupted.arrow_forward
- Which of the following characterize biofilms that form within the body? (Check all that apply.) Group of answer choices Biofilms help microorganism adhere to human tissue. Biofilms are formed only by Gram-positive bacteria. Biofilms protect microbes from the body’s defenses. Biofilms protect microorganisms from antibiotics. Biofilms are usually made up of only one species of bacteria.arrow_forwardWe have many antimicrobial drugs to treat bacterial infections, but very few for viruses. Why is it so difficult to treat viral infections? Hint: What would the targets for the drugs be?arrow_forwardRefrigerated milk can spoil due to microbial growth. Do these microbes typically cause disease in humans? Consider the environment in your body and the environment in which the microbes are growing.arrow_forward
- Diseases that involve biofilm-producing bacteria are of serious concern. They are not as easily treated compared with those involving free-floating (or planktonic) bacteria. Explain three reasons why biofilm formers are more pathogenic. Brian goes to the hospital after not feeling well for a week. He has a fever of 38 °C (100.4 °F) and complains of nausea and a constant migraine. Distinguish between the signs and symptoms of disease in Brian’s case.arrow_forwardYou have a mixed culture of 2 different bacterial species. One of the species is Gram negative bacilli and the other species is Gram positive cocci. You have noticed that one species is killed by penicillin antibiotics (attacks peptidoglycan) while the other survives. Neither species has antibiotic resistance genes. How can you explain this result? Remember to make direct reference to each bacterial species in your responsearrow_forwardList five cellular or structural mechanisms that microbes use to resist antimicrobials.arrow_forward
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