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 25.2, Problem 1R
Summary Introduction
To review:
The reason behind the resemblance of eukaryotes with prokaryotic archaea in some features and bacteria in others.
Introduction:
From many experimental pieces of evidence, it was proved that the eukaryotes share some similar characters with the prokaryotes. The similarities result from the evolutionary contribution of the bacteria and archaea in the formation of eukaryotes. The evolutionary contributions of prokaryotes make some features of the eukaryotes like bacteria and some like archaea.
The table below shows the differences between the prokaryotes and eukaryotes:
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Why were Archaea originally thought to be simply unusual forms of Bacteria? What lines of evidence showed this domain to form a distinct branch on the tree of life?
Which of the following statements is correct for archaea?(a) Archaea resemble eukaryotes in all respects.(b) Archaea have some novel features that are absent inother prokaryotes and eukaryotes.(c) Archaea completely differ from both prokaryotes andeukaryotes.(d) Archaea completely differ from prokaryotes
Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.
Some prokaryotes, especially archaea, are capable of living in extreme environments, such as deep-sea vents, where temperatures can reach 80°C (176°F). Few organisms can survive at this temperature. What adaptations might archaea possess that allow them to survive in such extreme heat?
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Life: The Science of Biology
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- For the organisms in the picture below: 1. To what kingdom do they belong? 2. Are they prokaryotic or eukaryotic?arrow_forwardIn the domain system of classification, prokaryotes are divided into two domains: Bacteria and Archaea. The two domains differ in all BUT one feature. Which feature do they have in common? Question options: They both have identical cell walls. They both have prokaryotic cells. They both thrive in extreme environments. They both are able to live only under anaerobic conditions.arrow_forwardIf you visit a lake in the middle of the Amazon and take water samples to analyze under a microscope from a nearby university that has good instrumentation and there you detect microorganisms that are not visible to the naked eye. What studies would you do to determine if they are bacteria, archaea, fungi or protozoa? Explain each type of analysis and how would you rule out members of each group? Write at least 3 paragraphsarrow_forward
- Archaea are so named because option1-their cell structure is thought to be more primitive than the cell structure of bacteria option2-they arose from the joining of members from the Archaea and Bacteria Domains. option3-many survive in extreme conditions thought to be similar to ancient earth option4-they are thought to be the first group of prokaryotes to evolve on eartharrow_forwardGlycerol-3-phosphate lipids are found in the cell membranes of which prokaryotic kingdom? kingdom Archaeobacteria kingdom Animalia kingdom Fungi kingdom Plantae kingdom Eubacteriaarrow_forwardWhy do some microbiologists disagree with classifying bacteria and archaea as “prokaryotes”?arrow_forward
- Which of the following statements concerning prokaryotes is TRUE? They have no nucleus and hence no DNA They have no Golgi apparatus They include bacteria, yeast, and protozoans They are all able to live on inorganic energy sources Both (b) and (c) are correctarrow_forwardWhy is it very important for us to understand the diversity of prokaryotic organisms since we cannot see them with our naked eyes? What could be the implications if we neglect these organisms and let them be a nuisance topic in Biology?arrow_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
- bacteria and archaea are both prokaryotes. But Carl Woese proposed that archaea are closer to eukaryotes. What’s the evidence for his theory?arrow_forwardList three ways to distinguish Cyanobacteria from phytoplankton (algae). How can you differentiate phytoplankton to zooplankton?arrow_forwardWhat features are similar between Archaea and Eukarya?arrow_forward
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