Microbiology: Principles and Explorations
10th Edition
ISBN: 9781119390114
Author: Black
Publisher: WILEY
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Chapter 6, Problem 1.2SC
What is the main difference between chemoautotrophs and chemoheterotrophs? Which of these groups include bacteria? Which include organisms that cause human disease?
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Iron bacteria, sulfur-oxidizing bacteria, and nitrifying bacteria, which all oxidize
inorganic compounds through a series of chemical reactions, are best described as
O 1) photoheterotrophs
2) chemoheterotrophs
O 3) chemolithotrophs.
O 4) photoautotrophs
5) chemoautotrophs.
Why are microorganisms called extremophiles?
Statement which is true about bacteria ?
A) All bacteria are autotrophs
B) Most of them are heterotrophs but some are autotrophs
C) All bacteria heterophs
D) All bacteria are photosynthetic
Chapter 6 Solutions
Microbiology: Principles and Explorations
Ch. 6 - How are photosynthesis and respiration related to...Ch. 6 - What is the main difference between...Ch. 6 - Distinguish between coenzyme and cofactor. How are...Ch. 6 - Prob. 2.2SCCh. 6 - Prob. 3.1SCCh. 6 - If four actual molecules of ATP are produced for...Ch. 6 - Prob. 3.3SCCh. 6 - Prob. 3.4SCCh. 6 - Prob. 4.1SCCh. 6 - What is returned to chlorophyll in cyclic...
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- An organism is discovered living near hydrothermal vents deep in the ocean where sunlight cannot reach. It is found to gain energy through the oxidation of inorganic sulfur compounds present in its environment and uses this energy to turn CO2 into complex organic compounds. Based on this information, how would this organism be best categorized metabolically? Chemoautotroph Chemoheterotroph Photoautotroph Photoheterotropharrow_forwardWhat are some examples of extremophiles?arrow_forwardWhich of the following is NOT true about chemoheterotrophs? Which of the following is NOT true about chemoheterotrophs? Use organic compounds as a source of both carbon and energy Can use light for energy and CO2 as a source of carbon Oxidize organic compounds (e.g., glucose) to generate ATP They are ultimately dependent on autotrophs to provide their carbon and energy None of the other four answers (all are true of chemoheterotrophs)arrow_forward
- What is an extremophile? What are some of the categories of extremophile microbes?arrow_forwardWhat are chemotrophs vs. autotrophs?arrow_forwardA chemoorganotroph and a chemolithoautotroph in the same environment would NOT compete for: a) carbon sources b) nitrogen sources Oc) phosphorous d) oxygenarrow_forward
- What is a microaerophile?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_forwardWhich of the following types of organisms use an organic source of carbon? a photoautotroph a photoheterotroph a chemoautotroph and a chemoheterotroph a chemoautotropharrow_forward
- In a dark cave, you discover a microscopic creature growing by stripping electrons from Cu+ (cuprous copper) and fixing atmospheric carbon. Your new pet, "Little Blue", is a: a) Chemoautotroph b) Chemoheterotroph c) Photoautotroph d) Photoheterotropharrow_forwardWhat is the significance of microbiology and why is it important to study bacteria and to distinguish one from another?arrow_forwardThe chemosynthetic bacteria are autotropic or heterotropic?arrow_forward
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Microbial Nutrition and Growth; Author: Scientist Cindy;https://www.youtube.com/watch?v=rK3UkyWjkl8;License: Standard YouTube License, CC-BY