Brock Biology of Microorganisms (14th Edition)
Brock Biology of Microorganisms (14th Edition)
14th Edition
ISBN: 9780321897398
Author: Michael T. Madigan, John M. Martinko, Kelly S. Bender, Daniel H. Buckley, David A. Stahl, Thomas Brock
Publisher: PEARSON
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Chapter 12, Problem 4RQ

What is the endosymbiotic hypothesis for the origin of mitochondria and chloroplasts? What evidence supports this hypothesis?

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Under the endosymbiotic theory for the origin of the eukaryotic cell. The ancestor of mitochondria and chloroplasts original became part of mutualism with a larger host cell. Which of the following best explains this mutualism?     A) The mitochondria and chloroplasts provided specialized reproduction as part of the proto-germ line while the larger host cell provided energy for growth and reproduction.     B) The mitochondria and chloroplasts provided gene products that could be used by the larger host cell for improved parasitization.     C) The mitochondria and chloroplasts provided molecular energy in return for protection by the larger host cell.     D) The mitochondria and chloroplasts produce toxins that the larger cell utilized to defend itself from other cells mutually increasing the defense of all those involved.
1. Why was the great oxygenation event important for mitochondrial development? a) In your own words, define symbiotic. 2. Chloroplasts and mitochondria both contain a circular DNA chromosome, and ribosomes.  Why does this evidence support the theory of endosymbiosis as the mechanism for the origin of eukaryotic cells? a) Today, could mitochondria live independently of their eukaryotic cell host?  Give two pieces of evidence to support your answer.
What evidence supports that mitochondria and chloroplasts originated from bacteria?

Chapter 12 Solutions

Brock Biology of Microorganisms (14th Edition)

Ch. 12.4 - Prob. 2MQCh. 12.4 - Prob. 3MQCh. 12.5 - How are DNA sequences obtained for phylogenetic...Ch. 12.5 - What does a phylogenetic tree depict?Ch. 12.5 - Prob. 3MQCh. 12.6 - What are the different processes that give rise to...Ch. 12.6 - What is the difference between selection and...Ch. 12.6 - In the experiment of Figure 13.12, why did the...Ch. 12.7 - What is the difference between the core and pan...Ch. 12.7 - What kind of recombination might have the greatest...Ch. 12.7 - What effects do deletions have on the evolution of...Ch. 12.8 - What is the difference between taxonomy and...Ch. 12.8 - What are some key criteria from the phylogenetic...Ch. 12.8 - How many species of Bacteria and Archaea have been...Ch. 12.9 - What class of genes is used in MLST analyses?Ch. 12.9 - How is ribotyping different from rep-PCR?Ch. 12.9 - What is FAME analysis?Ch. 12.10 - What roles do culture collections play in...Ch. 12.10 - What is the IJSEM and what taxonomic function does...Ch. 12.10 - Why might viable cell cultures be of more use in...Ch. 12 - Prob. 1RQCh. 12 - Prob. 2RQCh. 12 - Prob. 3RQCh. 12 - What is the endosymbiotic hypothesis for the...Ch. 12 - Prob. 5RQCh. 12 - REVIEW QUESTIONS 6. What major physiological and...Ch. 12 - Prob. 7RQCh. 12 - Prob. 8RQCh. 12 - Prob. 9RQCh. 12 - What is the difference between a gene tree and an...Ch. 12 - Prob. 11RQCh. 12 - Prob. 12RQCh. 12 - What is fitness? To what degree does fitness...Ch. 12 - What are some processes that influence the content...Ch. 12 - Prob. 15RQCh. 12 - What is the "species problem" and why is the...Ch. 12 - Prob. 17RQCh. 12 - Prob. 18RQCh. 12 - Prob. 19RQCh. 12 - Prob. 20RQCh. 12 - Prob. 21RQCh. 12 - Compare and contrast the physical and chemical...Ch. 12 - For the following sequences, construct the...Ch. 12 - Imagine that you have been given several bacterial...Ch. 12 - Imagine that you have discovered a new form of...
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Endosymbiotic Theory; Author: Amoeba Sisters;https://www.youtube.com/watch?v=FGnS-Xk0ZqU;License: Standard Youtube License