Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 26.1, Problem 1R
Summary Introduction
To review:
The reason behind the fact that the development of a flexible cell surface was considered as a key event in the evolution of the eukaryotic cell.
Introduction:
The journey from prokaryotes to eukaryotes was a result of a change in the structure and functions over extended periods of time. It is presumed that the eukaryotic cells evolved from a prokaryotic cell with a firm cell wall. The prokaryotic Archean lost the firm cell wall over time and became a eukaryote.
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The extra energy required for the evolution of the highly complex eukaryotic cell was possible because:
a) mesosomes released enzymes into the nucleus
b) two types of prokaryotic bacteria became endo symbiotic invaders of the complex cells
c) the DNA of the eukaryote cell functions within the nucleoid area
d) chloroplasts were able to use O2 to conduct photosynthesis
e) the space between the two layers of the nuclear membrane contained mitochondria
How old are the oldest fossils of Eukaryotic cells?
What evidence supports the hypothesis that mitochondria preceded plastids in the evolution of Eukaryotes cells?
Chapter 26 Solutions
Life: The Science of Biology
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- The evolution of the highly complex eukaryotic cell was possible because.. A) Mesosomes released enzymes in to the nucleus B) Two types of prokaryotic bacteria became endo symbiotic invaders of the complex cells C) The DNA of the eukaryote cell functions within the nucleoid area D) Chloroplasts were able to use 02 to conduct photosynthesis E) the space between the two layers of the nuclear membrane contained mitochondria Explain whyarrow_forwardHow did endosymbiosis contribute to the evolution of eukaryotes?arrow_forwardUsing the analogy of a one-hour countdown timer, when did prokaryotes originate? When did the colonization of land occur?arrow_forward
- Describe the hypothesized steps in the origin of eukaryotic cells.arrow_forwardIn what way was the evolution of eukaryotic cells linked to the increase in the oxygen concentration in the atmosphere that occurred during the Precambrian?arrow_forwardBased on the accompanying evolutionary tree, which prokaryotic domain gave rise to the domain Eukarya? Which kingdom in domain Eukarya gave rise to plants, animals, and fungi?arrow_forward
- In the evolution of the eukaryotic cell, these cells have evolved key changes that include which of the following: a) These cells reproduce by copying their DNA perfectly each generation b) They have their DNA in the nucleoid area c) They have adapted the mesosome membrane system of the prokaryote to form a nucleus and an endoplasmic reticulum d) each new type of new eukaryote cell has its mRNA unchanged from its original mRNA e) none of these are truearrow_forwardDescribe the evidence that supports the endosymbiotic theory of evolution of eukaryotes.arrow_forwardWhat event is thought to have contributed to the evolution of eukaryotes? a. global warming b. glaciation c. volcanic activity d. oxygenation of the atmospherearrow_forward
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