Brock Biology of Microorganisms, MasteringMicrobiology with eText and Access Card (14th Edition)
14th Edition
ISBN: 9780133857276
Author: Michael Madigan
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 18, Problem 13RQ
Q What are the major advantages of radioisotopic methods in the study of microbial ecology? What type of controls (discuss at least two) would you include in a radioisotopic experiment to show 14CO2 incorporation by phototrophic bacteria or to show
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Bacteria multiply exponentially. How can this pattern assist us in calculating bacterial growth? Can calculations assist us in understanding microbial development, and if yes, what does it assist us in understanding? How would you use these equations in real-world situations? Can you give an example of when learning how to quantify microbial growth might come in handy?
state 2 advantages and two disadvantages of using ; radioisotopic and stable isotopic methods in the study of microbial ecology.
You can determine the Z-value for both organisms by calculating the temperature change required to reduce the D value by 1 log cycle.
(Observations: Notice the difference in the two organisms. One has a steeper downward slope, but is offset higher. It is slightly more heat-tolerant, but slightly more susceptible to increases in temperature.)
Question: Raw milk can be contaminated by several common pathogenic bacteria (i.e. Staphylococcus, M. tuberculosis) and therefore must be pasteurized. Your goal is to find the minimum temperature and time required to destroy these organisms. If you know the Z-values for staphylococcus and M. tuberculosis, do you have enough information to set the appropriate heating parameters?
Chapter 18 Solutions
Brock Biology of Microorganisms, MasteringMicrobiology with eText and Access Card (14th Edition)
Ch. 18.1 - Describe the enrichment strategy behind...Ch. 18.1 - Why is sulfate (So42) added to a Winogradsky...Ch. 18.1 - What is enrichment bias? How does dilution reduce...Ch. 18.2 - How does the agar dilution method differ from...Ch. 18.2 - How might you isolate a morphologically unique...Ch. 18.2 - What is meant by high-throughput in culturing...Ch. 18.3 - How does viability staining differ from stains...Ch. 18.3 - Prob. 2MQCh. 18.3 - Why is it incorrect to say that the GFP is a...Ch. 18.4 - What structure in the cell is the target for...
Ch. 18.4 - FISH and CARD-FISH can be used to reveal different...Ch. 18.5 - What could you conclude from PCR/DGGE analysis of...Ch. 18.5 - What surprising finding has come out of many...Ch. 18.6 - MINIQUIZ
• What is a phylochip and what can it...Ch. 18.6 - What are the advantages and disadvantages of...Ch. 18.6 - Prob. 3MQCh. 18.7 - Prob. 1MQCh. 18.7 - How do environmental genomic approaches differ...Ch. 18.7 - Prob. 3MQCh. 18.8 - Prob. 1MQCh. 18.8 - If a large pulse of organic matter entered the...Ch. 18.9 - Prob. 1MQCh. 18.9 - What is the simplest explanation for why lunar...Ch. 18.9 - What is the expected isotopic composition of...Ch. 18.10 - How could NanoSIMS be used to identify a...Ch. 18.10 - Prob. 2MQCh. 18.10 - How does MAR-FISH link microbial diversity and...Ch. 18.11 - How can stable isotope probing reveal the identity...Ch. 18.11 - What key method is required to do genomics on a...Ch. 18.11 - Prob. 3MQCh. 18 - Prob. 1RQCh. 18 - Prob. 2RQCh. 18 - Prob. 3RQCh. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - Prob. 9RQCh. 18 - REVIEW QUESTIONS
10. Why is a microarray not...Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Q What are the major advantages of radioisotopic...Ch. 18 - Prob. 14RQCh. 18 - Prob. 15RQCh. 18 - REVIEW QUESTIONS
16. What is the advantage of...Ch. 18 - Prob. 17RQCh. 18 - Design an experiment for measuring the activity of...Ch. 18 - You wish to know whether Archaea exist in a lake...Ch. 18 - Design an experiment to solve the following...Ch. 18 - Design a SIP experiment that would allow you to...
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
- Helping tags: biology, microbiology, food microbiology, microbial growth, microbial death Analyze figures 2.7 and 2.8. 1. Guide questions: a) What range of time and temperature combinations poses the highest risk? How do you say so? b) Explain briefly why hazards and risks decrease as temperature decreases from 55oC upwards. c) Discuss briefly why after 100 hours, the risk decreases even if the temperature is optimal for growth of pathogens. d) Write a conclusion explaining the relationship between time and temperature as illustrated in the 2 figures. . . . WILL UPVOTE, just pls help me answer the questions. Thanks.arrow_forwardQ2 b) Distinguish how the mechanism of microbial conjugation would be beneficial into the microbial evolution and human health.arrow_forwardQ2) How could you determine if the cloudiness (turbidity) of your nutrient broth was from a mixture of microbes or from the growth of only one kind of microbe? - How do you know if your bacteria can move from the ‘agar deep’? - Why is aseptic transfer technique important?arrow_forward
- Aliivibrio fischeri is a marine bacterium that uses quorum sensing to regulate bioluminescence. These bacteria will only bioluminesce when the population is above a certain density. Why would it be advantageous to bioluminesce only when the population is large?arrow_forward1. How do we say when a culture is properly cryopresevred? Discuss is comprehensively.arrow_forwardQ no 2: Explain the steps needed for the cell culture of endangered plant species?arrow_forward
- imlooking for answer 1 up to 3 1. . Mention the habitat in which methanogens can be found? What are the practical importance of the methanogens? 2. explain the strategies halophiles have evolved to cope with osmotic stress and why these strategies are needed. 3. which phylum of archael belongs to the group II and cannot be cultured in the lab, and why is that so? mention the habitat of this phylumarrow_forwardQ2) How could you determine if the cloudiness (turbidity) of your nutrient broth was from a mixture of microbes or from the growth of only one kind of microbe? - What is one of the main benefits of an agar? - What is the purpose of flaming the loop before use? After use? - How do you know if your bacteria can move from the ‘agar deep’? - Why is aseptic transfer technique important?arrow_forwardA batch reactor was initially filled with organic substrate (S0) with an equivalentconcentration of COD = 1000 mg/L and 100 mg/L of bacterial biomass (X0). After 24 hraeration, the biomass in the reactor increased to 300 mg/L, while the substrateconcentration decreased to 200 mg/L as of COD; what is the observed biomass yield (Y)during this biodegradation process?arrow_forward
- 1. Can natural assimilation reduce eutrophication? Is there a limit to natural assimilation?Discuss. 2.arrow_forwardDifferentiate between teichoic & lipoteichoic acid, spheroplast & protoplast. Also briefly escribe the importance of quorum sensing in microbial community.arrow_forwarddescribe the molecular switches involved in microbial stationary growth phase. give one research article linkarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Explore Terrestrial Habitats - Types of Habitats for Children; Author: Smile and Learn - English;https://www.youtube.com/watch?v=vv1indKgOHQ;License: Standard youtube license