Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 17, Problem 3PIT
Summary Introduction
To add:
Obligate aerobes, facultative anaerobes and obligate anaerobes in the Fig.17.18: “Pull it Together: Bacteria and Archaea”, of the textbook.
Concept introduction:
In case of eukaryotes, oxygen is one of the most vital molecules that they need to have. However, it is not true for all the organisms. Many prokaryotes can live without oxygen and some actually have to live without oxygen as it is toxic to them.
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Why do obligate aerobes (and facultative anaerobes) need oxygen? Be specific.
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Chapter 17 Solutions
Biology: Concepts and Investigations
Ch. 17.1 - What are two domains that contain prokaryotes?Ch. 17.1 - Prob. 2MCCh. 17.1 - Prob. 3MCCh. 17.1 - Prob. 4MCCh. 17.2 - Prob. 1MCCh. 17.2 - Prob. 2MCCh. 17.2 - What does the Gram stain reveal about a cell?Ch. 17.2 - Prob. 4MCCh. 17.2 - Prob. 5MCCh. 17.2 - How are molecular data changing microbial...
Ch. 17.2 - Prob. 7MCCh. 17.3 - Prob. 1MCCh. 17.3 - Prob. 2MCCh. 17.3 - Prob. 3MCCh. 17.4 - Prob. 1MCCh. 17.4 - Prob. 2MCCh. 17.4 - What adaptations enable pathogenic bacteria to...Ch. 17.4 - What are some practical uses of bacteria and...Ch. 17.5 - Prob. 1MCCh. 17.5 - Prob. 2MCCh. 17 - A prokaryotic cell is one that a. lacks DNA. b....Ch. 17 - Which of these is a distinguishing characteristic...Ch. 17 - What feature distinguishes the cell walls of...Ch. 17 - Prob. 4MCQCh. 17 - Prob. 5MCQCh. 17 - Prob. 6MCQCh. 17 - Prob. 7MCQCh. 17 - Prob. 8MCQCh. 17 - Explain why the antibiotics penicillin and...Ch. 17 - Give five examples that illustrate how bacteria...Ch. 17 - If you were developing a new "broad-spectrum"...Ch. 17 - Ernst Mayr defined a biological species as a...Ch. 17 - In an article in Nature magazine, Sean Nee wrote...Ch. 17 - Ecosystems rely on nitrogen -fixing bacteria,...Ch. 17 - Prob. 7WIOCh. 17 - Prob. 8WIOCh. 17 - Prob. 9WIOCh. 17 - Prob. 10WIOCh. 17 - Mycobacterium tuberculosis causes most cases of...Ch. 17 - Prob. 1PITCh. 17 - Add autotrophs, heterotrophs, phototrophs, and...Ch. 17 - Prob. 3PITCh. 17 - Prob. 4PITCh. 17 - Prob. 5PIT
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- What do you mean by obligate aerobes? Give some examples.arrow_forwardHow do microbes differ in their response to oxygen levels? Why would they differ? What enzymes are needed to adapt to environments containing differing amounts of oxygen?arrow_forwardFlasks A and B contain broth, and are inoculated with an identical number of bacteria that are facultative anaerobes. Flask A contains a triglyceride lipid as the sole nutrient source, and Flask B contains a monosaccharide called fructose as the sole nutrient source. Both flasks are incubated at 30°C with aeration (oxygen is added to the broth). Assume the bacteria are capable of catabolism of both fructose and triglycerides. Mark all the correct statements pertaining to these cultures. A. Under anaerobic conditions, cells in flask A will produce more ATP B. Cells from flask B will produce more carbon dioxide C. Cells from flask B will produce more ATP D. Flask A will have the greater cell mass E. Cells from flask A will produce more ATP F. Cells from flask A will produce more carbon dioxide G. Flask B will have the greater cell mass H. Under anaerobic conditions, cells in flask B will produce more ATParrow_forward
- Name two enzymes that are present in obligate aerobes but lacking in obligate anaerobes. What is the function of each enzyme?arrow_forwardBecause elemental poisons, such as heavy metals, cannot be furtherdegraded even by microbes, what is a possible fate of these metals?arrow_forwardIs anaerobic bacteria dangerous?arrow_forward
- Most living organisms cannot survive at temperature above 45°C. How are some microbes able to live in habitats with temperatures exceeding 100°C?arrow_forwardFor Mycobacterium tuberculosis In this part, you will describe how the microbe interacts with other organisms and/or the non-living environment. Choose the most pertinent interactions for your microbe. For example, if your microbe is a human pathogen, focus on the interaction with human cells and the immune system. If your microbe is a nitrogen-fixer, focus on the interaction with other organisms via the nitrogen cycle. aim for including at least 5 key points regarding the interactions and describe those points in detail please write a new heading for each of your key points so that it's clear to me what the 5 points arearrow_forwardWhat do the adjectives obligate and facultative mean with regard to microbes?arrow_forward
- What is meant when it is said that a bacteria is an obligate anaerobe?arrow_forwardA prokaryotic cell hitched a rideto planet earth on a space shuttle from some unknown planet. The oiganism is a psychrophile, an obligate halophile and an abligate aerobe. a) Based on the charateristics of this microbe, describe the planet (3 descriptors) b) Could this organism survive on your kitchen counter? and why?arrow_forwardWhich of these statements is/are TRUE? A) In general, species that can grow at higher temperatures are prokaryotic. B) The most thermophilic prokaryotes are species of Archaea. C) Chemoorganotrophic organisms are able to grow at higher temperatures than phototrophic organisms. D) All of the statements are true.arrow_forward
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