Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 30.1, Problem 2RIA
Describe the buffering system that regulates the pH of seawater. What might be the implications of this stable buffering on microbial evolution?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
a) bacteria are “obligate anaerobes.” What does this mean? On Earth, where might these organisms live? (Give examples.)
b) Humans (and most Eukaryotic organisms) are obligate aerobes. What does this mean? On Earth, where might these organisms live? (Give examples.)
Why do you think most bacteria grown in labs are mesophiles with a pH optimum for growth near 7.0, do you believe that it is representative of bacteria on earth? What problems would this cause.
Why is it not safe to assume that two microorganisms with the same G + C content belong to the same species? In what ways are G + C content data taxonomically valuable?
Chapter 30 Solutions
Prescott's Microbiology
Ch. 30.1 - Figure 30.1 The Carbonate Equilibrium System....Ch. 30.1 - What factors influence oxygen solubility? How is...Ch. 30.1 - Describe the buffering system that regulates the...Ch. 30.1 - Prob. 3RIACh. 30.1 - What features of a thermocline make it similar to...Ch. 30.2 - How is sulfur cycled between the anoxygenic...Ch. 30.2 - How do heterotrophic microbes contribute to the...Ch. 30.2 - Prob. 3MICh. 30.2 - Prob. 1.1RIACh. 30.2 - Prob. 1.2RIA
Ch. 30.2 - Describe the ecosystem that develops within a...Ch. 30.2 - What is marine snow? Why is it important in CO2...Ch. 30.2 - Prob. 2.2RIACh. 30.2 - Why do you think that, despite their great...Ch. 30.2 - List some metabolic strategies that have evolved...Ch. 30.2 - Describe the role of marine viruses in the...Ch. 30.2 - Explain what is meant by upside-down microbial...Ch. 30.2 - Prob. 2.7RIACh. 30.3 - Figure 30.15 Nutrient Cycling in Antarctic Lakes...Ch. 30.3 - How does the contribution of benthic autotrophs...Ch. 30.3 - Why does water turbulence play only a minor role...Ch. 30.3 - Why is mixotrophy suited for survival in Antarctic...Ch. 30.3 - What is an oxygen sag curve? What changes in a...Ch. 30.3 - What are point and nonpoint source pollution? Can...Ch. 30.3 - Prob. 2.1RIACh. 30.3 - Prob. 2.2RIACh. 30.3 - Why do cyanobacteria often dominate waters that...Ch. 30 - The unicellular cyanobacterium Prochlorococcus sp....Ch. 30 - How might it be possible to cleanse an aging...Ch. 30 - It is well known that bacterivory (the consumption...Ch. 30 - Prob. 4CHI
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
- Some marine bacteria, such as Cytophaga species, live and grow well inside fish guts and in waters below freezing temperatures. These bacteria are: a) Halophilic b) Psychrophilic c) Friophilic d) Thermophilic e) Mesophilicarrow_forwardAntibiotics enter the environment in wastewater from pharmaceutical manufacturing plants, in wastes from farms where they are used in animals, and in sewage from human populations. (Many antibiotics are excreted in their active form.) The influx of antibiotics into the environment is a concern because the presence of these compounds in the environment selects for antibiotic resistance. As pollutants, antibiotics can also have ecological effects. Describe some of the ecological roles of bacteria, and explain why disruption of these roles by antibiotic pollution would have a negative impact.arrow_forwardThe authors in the abstract given above describe the mechanism for the activation of metallothionein (MTF) that results in the detoxification of heavy metals. Use a diagram to illustrate and describe the cascade of events that occur as proposed by the authors.arrow_forward
- How do effects of pH, salt composition, and solute valence on partitioning of bioproducts compare in organic-solvent and aqueous two-phase extraction?arrow_forwardWhat is G+C content of a bacteria? How it can be determined? Why it is not safe to assume that microorganisms with same G+C content belong to same species? How G+C content data is taxonomically valuable?arrow_forwardIf you isolate a bacteria from the digestive system system of mouse, what would you expect the bacterial response to varying pH to be? What would you likely classify this bacteria as?arrow_forward
- In a population of cyanobacteria (Chlorogloeopsis fritschii) in a hot spring in Iceland, some of the bacteria can produce chlorophyll f, while some C. fritschii produce only other types of chlorophylls. Chlorophyll f absorbs light outside of the visible light spectrum, namely near infrared light, allowing the bacteria to absorb light that has not been absorbed or reflected by the water or other organisms. The ability to produce chlorophyll f is heritable, and the bacteria with chlorophyll f can live in low-light environments, such as underneath other organisms, or near the bottom of the light-penetrating zone of the spring. What is the adaptation in this population of C. fritschii living in low-light environments? (Choose one.) a) the ability to produce chlorophyll f b) the ability to produce any type of chlorophyll c) the ability to tolerate the high temperatures of the hot spring d) the ability to survive and reproducearrow_forwardFor most part of our planet’s history, organisms are microbial. Explain why this is the case?arrow_forwardOrganisms that live in fresh water are almost always hypertonic to their environment .In what way is this a serious problem? How could some organisms cope with this problem ?arrow_forward
- Please explain the significance and implications of the "Vernadsky Paradox" from a microbial perspective.arrow_forwardA species of Antarctic bacteria doubles in number every 18 months. calculate the growth constant (k)arrow_forwardDesign a SIP experiment that would allow you to determinewhich organisms in a lake water sample were capable ofoxidizing the hydrocarbon hexane (C6H14). Assume that fourdifferent species could do this. How would you combineSIP with other molecular analyses to identify thesefour species?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Explore Terrestrial Habitats - Types of Habitats for Children; Author: Smile and Learn - English;https://www.youtube.com/watch?v=vv1indKgOHQ;License: Standard youtube license