BIOLOGY (LL)
5th Edition
ISBN: 9781264115495
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 4.1, Problem 2CC
Which protobiont seems most similar to today’s cells? Explain.
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Tell whether the statement is true or false.
1. The endosymbiont hypothesis state that prokaryotes evolved into eukaryotic cells
2. Eukaryotes contain organelles such as mitochondria and chloroplast
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4. Bacteria is an example of prokaryoric cwll
5. Prokaryote is a type of cell that has no nucleus and no cell membrane but has cytoplasm
Chapter 4 Solutions
BIOLOGY (LL)
Ch. 4.1 - What properties of deep-sea vents made them...Ch. 4.1 - Which protobiont seems most similar to todays...Ch. 4.1 - Core Skill: Connections Look back at Figure 3.11....Ch. 4.1 - Prob. 3CCCh. 4.2 - Prob. 1CCCh. 4.2 - Prob. 2CCCh. 4.3 - Prob. 1CSCh. 4.3 - Prob. 1CCCh. 4.3 - Prob. 2CSCh. 4.4 - Prob. 1CS
Ch. 4.4 - Describe the type of movements that occur between...Ch. 4.4 - Prob. 2CSCh. 4.5 - Prob. 1CCCh. 4.5 - Prob. 1CSCh. 4.5 - If we consider the Golgi apparatus as three...Ch. 4.5 - The Nucleus and Endomembrane System Experimental...Ch. 4.5 - Prob. 2EQCh. 4.5 - Prob. 3EQCh. 4.5 - Prob. 3CCCh. 4.6 - Prob. 1CCCh. 4.6 - Core Skill: Connections Look ahead to Figure...Ch. 4.7 - Prob. 1CCCh. 4.7 - Prob. 2CCCh. 4 - The cell theory states that a. all living things...Ch. 4 - Prob. 2TYCh. 4 - Prob. 3TYCh. 4 - Prob. 4TYCh. 4 - Each of the following is part of the endomembrane...Ch. 4 - Prob. 6TYCh. 4 - Functions of the smooth endoplasmic reticulum...Ch. 4 - Prob. 8TYCh. 4 - Prob. 9TYCh. 4 - Which of the following observations would not be...Ch. 4 - What are the four stages that led to the origin of...Ch. 4 - Explain how motor proteins and cytoskeletal...Ch. 4 - Prob. 3CQCh. 4 - Discuss the roles of the genome and proteome in...Ch. 4 - Prob. 2COQ
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- According to the endosymbiotic theory, protoeukaryotes did not have ribosomes until the endosymbiosis with mitochondria was established.arrow_forwardDefine the endosymbiotic theory. Explain how mitochondria and chloroplasts evolved by endosymbiosis. Explain 4 pieces of evidence for the Endosymbiotic Theory.arrow_forwardDiscuss the key features of a protobiont. What distinguishes aprotobiont from a living cell?arrow_forward
- Using the analogy of a one-hour countdown timer, when did prokaryotes originate? When did the colonization of land occur?arrow_forwardA group of environmentalists is studying the effects of recent commercial zoning to wildlife acreage on the biodiversity of a rural county. The group noted a steady decline in the population of animals, while bacteria and other protists remained constant. Which statement best discusses the reasons for the steady decline of animals as opposed to the protists? A. Bacterial growth is usually not affected by environmental changes because of asexual reproduction. B. The animals could not adapt to the new environment. C. Bacteria lived in areas that were not affected by the zoning D. The animals became susceptible to human and environmental harm.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 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_forwardThe theory endosymbiosis is important in understanding how mitochondria and eukaryotic cells may have evolved.what structure is central to the concept of endosymbiosisarrow_forwardChoose one prokaryote (bacteria or archaea) AND one protest. You can choose a species or more general taxonomic group of interest. Then address the following questions for each. 1. What does the organism look like? Describe or include an image. 2. How does it obtain energy? 3. How does it reproduce? 4. What are its close relatives in the tree of life? 5. Why is it important from a human perspective?arrow_forward
- The theory of endosymbiosis explains how or why ○ free living bacteria became Eukaryotic organelles ○ human guts evolved to have a microbiome ○ Eukaryotic cells acquired their nuclei ○ large food particles can be consumed by Eukaryotes, but not bacteriaarrow_forwardThe answer to the question of how eukaryotic cells evolved has been suggested in the Endosymbiotic Theory. Provide at least 4 pieces of evidence to support this theory.arrow_forwardDiscuss the Endosymbiotic Theory. Do you think it is a strong explanation on how the eukaryotes emerged on Earth?arrow_forward
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Prokaryotic vs. Eukaryotic Cells (Updated); Author: Amoeba Sisters;https://www.youtube.com/watch?v=Pxujitlv8wc;License: Standard youtube license