Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 7, Problem 9MCQ
A classmate is trying to determine how a disinfectant might kill cells. You observed that when he spilled the disinfectant in your reduced litmus milk, the litmus turned blue again. You suggest to your classmate that
- a. the disinfectant might inhibit cell wall synthesis.
- b. the disinfectant might oxidize molecules.
- c. the disinfectant might inhibit protein synthesis.
- d. the disinfectant might denature proteins.
- e. he take his work away from yours.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A scientist develops a new medication that is a protein compound and must be administered by injection. Which of the following would be the most effective and safest means of preparing a nearly sterile solution of the new medication?
Select one:
a.
ultraviolet irradiation
b.
autoclaving
c.
filtration
d.
Lyophilization
e
dilution with alcohol
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?
A
C
before washing hands
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.
In general, protein detection methods are based on:
a. fluorescence
b. column affinity
c. enzyme-substrate reaction
d. antigen-antibody reaction
Chapter 7 Solutions
Microbiology: An Introduction
Ch. 7 - The thermal death time for a suspension of...Ch. 7 - If pasteurization does not achieve sterilization,...Ch. 7 - Thermal death point is not considered an accurate...Ch. 7 - Prob. 4RCh. 7 - DRAW IT A bacterial culture was in log phase in...Ch. 7 - How do autoclaving, hot air, and pasteurization...Ch. 7 - How do salts and sugars preserve foods? Why are...Ch. 7 - Prob. 8RCh. 7 - A large hospital washes burn patients in a...Ch. 7 - Prob. 10R
Ch. 7 - Which of the following does not kill endospores?...Ch. 7 - Which of the following is most effective for...Ch. 7 - Prob. 3MCQCh. 7 - Which of the following cannot be used to sterilize...Ch. 7 - Prob. 5MCQCh. 7 - The data were obtained from a use-dilution test...Ch. 7 - The data were obtained from a use-dilution test...Ch. 7 - Prob. 8MCQCh. 7 - A classmate is trying to determine how a...Ch. 7 - Which of the following is most likely to be...Ch. 7 - Prob. 1ACh. 7 - For each of the following bacteria, explain why it...Ch. 7 - A use-dilution test was used to evaluate two...Ch. 7 - To determine the lethal action of microwave...Ch. 7 - Entamoeba histolytica and Giardia lamblia were...Ch. 7 - Between March 9 and April 12five chronic...Ch. 7 - Prob. 3CAE
Additional Science Textbook Solutions
Find more solutions based on key concepts
Some species of bacteria that live at the surface of sediment on the bottom of lakes are capable of using eithe...
Biology: Life on Earth with Physiology (11th Edition)
a. What three lineages of lobe-fins survive today? b. Go back to the phylogenetic tree in Interactive Question ...
Study Guide for Campbell Biology
Single penny tossed 20 times and counting heads and tails: Probability (prediction): _______/20 heads ________/...
Laboratory Manual for Holes Human Anatomy & Physiology Fetal Pig Version
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What will be the results of the following experiment with explanations: A. Gram-positive bacteria and Gram-negative bacteria were placed into 0.2% NaCl solution. B. Gram-negative bacterial isolate was placed into 0. 3% NaCl solution containing only Lysozyme enzyme. C. Gram-positive bacteria and Gram-negative bacteria were placed into 0.09% NaCl solution containing only Penicillin?arrow_forwardThe first step for directly linking a microbe to a specific disease according to Koch's postulates is to A.isolate microbes from the blood of healthy animals. B. culture the blood or other body fluid from a diseased animal using nutrient medium. C. inject a sample of blood or other body fluid from a diseased animal into a healthy animal. D. obtain a sample of blood or other body fluid from a diseased animal.arrow_forwardWhich of the following compounds represents a peptidoglycan specific antibiotic ? A. tetracycline B. chloramphenicol C. penicillin D. aspirinarrow_forward
- When viewed under a microscope, bacteria appear as red rods after they have been stained. Explain a quick process for determining the outcome of this experiment.arrow_forwardGiven this, if you used 6g of vitamin Z powder to make 20 ml of solution, what is the % concentration of this solution? (I gave the image since I don't know if that info is needed to solve this question.)It also gives a follow-up, if you can help here too: You work in a lab as a summer student. One of your tasks is to make sure that there is enough cell culture medium containing antibiotics to grow bacteria. One day you realize that there is only 5 ml of 10% Antibiotic stock solution in the freezer. You decide to use it all to prepare the working culture medium with 0.01% antibiotic. In the lab there is plenty of growth medium without antibiotics. (Note: dilution in medium is like dilution in water). You remember the equation to make dilutions of stock solutions. You usually use this formula to calculate the required volume of a stock solution, but you realize it can apply here as well, even though the unknown is the final volume. So, you make that dilution. Given that each bacterial…arrow_forwardMatch the following drug targets with the type of antibiotic that uses them (answers may be used more than once or not at all). a. Cell wall b.Cell membrane c. Protein synthesis (Transcription/Translation) d. Metabolic Pathway e. Nucleic Acid synthesis Chloramphenicol Clindamycin Erythromycin Doxycycline Sulfonamides Answer these multiple-choice questions as well. Please give just the answer and no explanation. 1. Which is not true of virus capsids?a. They surround and protect viral nucleic acidb. Always icosahedral in shapec. Remain outside of host bacterial cells while the nucleic acid is injected into the bacterial celld. Enters host animal cells together with the nucleic acid e. Made up of protein subunits called capsomeres 2. All viruses have: a. DNA b. RNAc. Envelopesd. Glycoprotein spikes e. Host specificity 3. Use the following to select the sequence of events during replication of DNA viruses in animal cells:1 = replication of viral nucleic acid2 = adsorption3…arrow_forward
- Which of the specimen(s) is a eukaryote cell? (Only one choice is correct). A. lymphocyte and red blood cells B. dust mite C. E. coliarrow_forwardYou have a culture of cells at a density of 2.7 x 109 cells/mL and you want to plate out 100 cells in a volume of 200 μL. Explain how you would do this.arrow_forwardChoose the combination of answers that most accurately completes the statement.A compound synthesized by bacteria or fungi that destroys or inhibits the growth of other microbes is a/an a. synthetic drug c. antimicrobial drug b. antibiotic d. competitive inhibitorarrow_forward
- Bacteria may be Gram + or Gram - due to their difference in staining. This stain is significant to treating bacterial diseases because A. Some people are immune to one type of bacteria but not the other B. The types of antibiotics prescribed will be based in part on which type of bacteria is causing the infection. C. Gram - always cause disease, Gram positives don't D. You can eliminate a large group of bacteria by knowing if infection is caused by either a Gram + or a Gram - which makes it easier to treat. E. B and D are correctarrow_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_forwardA 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_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
What is Metabolism?; Author: Stated Clearly;https://www.youtube.com/watch?v=nRq6N5NGD1U;License: Standard youtube license