Biology: The Dynamic Science
4th Edition
ISBN: 9781337246422
Author: Peter J. Russell; Paul E. Hertz; Beverly McMillan
Publisher: Cengage Learning US
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Chapter 27.2, Problem 2SB
In primary endosymbiosis, a nonphotosynthetic eukaryotic cell engulfed a photosynthetic cyanobacterium. How many membranes surround the chloroplast that evolved?
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Students have asked these similar questions
According to the endosymbiotic theory, why did the primitive eukaryotic cell fail to digest the non-photosynthetic prokaryote that later became an energy-producing organelle?
Because the engulfed cell provided the host cell with carbon dioxide.
Because the host cell was able to survive anaerobic conditions with the engulfed cell alive.
Because the engulfed cell allowed the host cell to metabolize glucose.
Because the engulfed cell provided the host cell with adenosine triphosphate (ATP).
The prtists that causes malaria evolved from a photosynthetic ancestor and has the remnant of a chloroplast. The organelle no longer functions in photosynthesis, but it remains essential to the protist. Why might targeting this organelle yield an antimalarial drug that produces minimal side effects in humans?
Chloroplast formation in zygotes of algae?
Chapter 27 Solutions
Biology: The Dynamic Science
Ch. 27.1 - What distinguishes protists from prokaryotes? What...Ch. 27.2 - What is the evidence that the metamonads, which...Ch. 27.2 - In primary endosymbiosis, a nonphotosynthetic...Ch. 27 - Which of the following is a characteristic of...Ch. 27 - Which of the following is not found among the...Ch. 27 - Prob. 3TYKCh. 27 - When Paramecium conjugate: a. cytoplasmic division...Ch. 27 - The group Diplomonadida is characterized by: a. a...Ch. 27 - Prob. 6TYKCh. 27 - Prob. 7TYK
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- Mitochondria are a symbiont that most likely evolved from ?arrow_forwardSome aspects of eukaryotes are more similar to Archaea, while other aspects of eukaryotic cell composition appear more closely related to Bacteria. Explain how endosymbiosis could resolve this paradox.arrow_forwardThe endosymbiont theory states that mitochondria andchloroplasts evolved from symbiotic relationshipsestablished between bacteria-like cells and theprecursors of eukaryotic cells that engulfed them on what basisarrow_forward
- Some non-plant organisms like the protist that spreads malaria contain a non-photosynthetic chloroplast called an apicoplast. Crazy! What best explains how protists have evolved apicoplasts?arrow_forwardAccording to the endosymbiotic theory, protoeukaryotes did not have ribosomes until the endosymbiosis with mitochondria was established.arrow_forward1. 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.arrow_forward
- The Kingdom Protista is initially divided into two groups based on whether the organism in question is capable of photosynthesis.arrow_forwardIf mitochondria originated as proteobacteria and chloroplasts are descended from cyanobacteria, where does the rest of the eukaryotic cell come from?arrow_forwardWhich of these would be evidence against endosymbiosis? a) chloroplast have their own DNA O b) their structure resembles that of prokaryotes O c) the presence of one membrane O d) chloroplast resemble cyanobacteriaarrow_forward
- a) Describe some characteristics and differences between prokaryotic and eukaryotic cells.b) How do the three domains of life differ from one another?c) Two of the organelles in eukaryotes, the mitochondrion and the chloroplast are believed to haveoriginated through a process of symbiosis. Discuss some of the theories of the origins ofmitochondria and chloroplastsarrow_forwardare these found in eukaryotes, prokaryotes or both? 1. nucleus 2. cell membrane 3. inclusion bodies 4. cell wall 5. peptidoglycan 6. genome 7. endoplamis reticulum 8. chloroplastsarrow_forwardSome aspects of eukaryotes are more similar to archae while other aspects of eukaryotic cell composition appear closely related to bacteria. Explain how endosymbiosis could resolve this paradox.arrow_forward
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Endosymbiotic Theory; Author: Amoeba Sisters;https://www.youtube.com/watch?v=FGnS-Xk0ZqU;License: Standard Youtube License