EP CAMPBELL BIO.FOCUS-MOD.MASTER.(18WK)
3rd Edition
ISBN: 9780136781851
Author: Urry
Publisher: PEARSON CO
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Chapter 24.5, Problem 4CC
Summary Introduction
To explain:
The reason why a sudden dramatic change in your diet affect the diversity of the prokaryotic species in your gut.
Concept introduction:
The food items contain different ingredients like carbohydrates,
lipids and proteins. The
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Which of the following can prokaryotes not do? (a) communicate with each other about environmental conditions (b) reproduce sexually (c) live in extreme environments, including high salt, high temperature, and high atmospheric pressure (d) share DNA with other prokaryotes (e) double in population size two or more times an hour
. The endosymbiotic hypothesis for the origin of mitochondria from gram-negative prokaryotes is supported by all of the following lines of evidence except:
A. the presence of enzymes for the Krebs cycle, electron transport, and oxidative phosphorylation
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the presence of 80s ribosomes, consisting of 40s and 60s ribosomal subunits
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Chapter 24 Solutions
EP CAMPBELL BIO.FOCUS-MOD.MASTER.(18WK)
Ch. 24.1 - What hypothesis did Miller test in his classic...Ch. 24.1 - How would the appearance of protocells have...Ch. 24.1 - Prob. 3CCCh. 24.1 - Prob. 4CCCh. 24.2 - Contrast the cellular and DNA structures of...Ch. 24.2 - Distinguish between the four major modes of...Ch. 24.2 - Prob. 3CCCh. 24.2 - Prob. 4CCCh. 24.3 - Although rare on a per gene basis, new mutations...Ch. 24.3 - Distinguish between the three mechanisms by which...
Ch. 24.3 - In a rapidly changing environment, which bacterial...Ch. 24.3 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 24.4 - Explain how molecular systematics and metagenomics...Ch. 24.4 - WHAT IF? What would the discovery of a bacterial...Ch. 24.5 - Explain how prokaryotes, though small, can be...Ch. 24.5 - Prob. 2CCCh. 24.5 - Prob. 3CCCh. 24.5 - Prob. 4CCCh. 24 - Which of the following steps has not yet been...Ch. 24 - Fossilized stromatolites A. more than 2.8 billion...Ch. 24 - Prob. 3TYUCh. 24 - Photoautotrophs use A. light as an energy source...Ch. 24 - Which of the following statements is not true? A....Ch. 24 - Prob. 6TYUCh. 24 - Prob. 7TYUCh. 24 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 24 - FOCUS ON EVOLUTION In patients infected with...Ch. 24 - FOCUS ON ENERGY AND MATTER In a short essay (about...Ch. 24 - Prob. 11TYU
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- Differentiate the three domains of life. Archaea Bacteria Eukarya Presence of cell wall (+/-) Presence of cell membrane (+/-) Presence of mitochondria (/-) Presence of chloroplast (/-) Presence of peptidoglycan (+/-) Presence of capsules (+/-) Type of cell membrane linkage on lipids Type of cell membrane side chain of lipids Types of cell membrane lipids Give 2 examplesarrow_forwardWHAT IF? What evolutionary processes might accountfor prokaryotes having smaller genomes than eukaryotes?arrow_forwardBacteria are by far the most numerous organisms on earth. Some estimates indicate that the total biomass of bacteria is larger than that of all plants and animals, despite their tiny size. However, biologists' knowledge of bacteria is very uneven. In some ways, biologists know more about certain bacteria than we do about most animals, including humans. In other ways, biologists still know very little about bacteria and the Bacteria Kingdom. For example, there might be about a million species of bacteria, or there could be billions of different species. Think about benefits and complications related to the biological study and knowledge of bacteria. What are some ways in which bacteria are very well-known and/or easy to study? What are some ways in which bacteria are very poorly-known and/or difficult to study (other than the total number of species). Discuss how this relates to technology, other developments in biological research, and/or characteristics of the bacteria…arrow_forward
- Which phylogenetic model proposes that all three domains of life evolved from a pool of primitive prokaryotes? tree of life web of life ring of life network modelarrow_forwardWe know that bacteria and archaea are very diverse in their metabolic capabilities, such as the consumption of organic waste and carbon dioxide and the creation of others such as oxygen, alcohol, methane, nitrates, and antibiotics. Amazingly these known capabilities only come form the 1-10% of prokaryotes that have been identified. Scientists hypothesize that at least 90% are undiscovered and have potential metabolic capabilities we could harness to benefit human life. If you were a scientist, what metabolic capability of bacteria would you try to discover to solve a human or environmental problem? Why?arrow_forwardThink about the conditions (temperature, light, pressure, and organic and inorganic materials) that you may find in a deep-sea hydrothermal vent. What type of prokaryotes, in terms of their metabolic needs (autotrophs, phototrophs, chemotrophs, etc.), would you expect to find there?arrow_forward
- All of the following statements are true about the3-domain classification system EXCEPT:(a) The three domains are Bacteria, Archaea, and Eukarya.(b) Lateral gene transfer has forced us to rethink our do-main model from a “tree of life” to a “shrub of life.”(c) Domains are higher than the category of kingdoms.(d) Compared to Bacteria, Archaea inhabit the same en-virons and have the same amount of peptidoglycan intheir cell walls.(e) All of the above are true.arrow_forward. You are discussing the choice of the "oil-eating" bacteria that you will use to clean the affected area from the oil spill and your team wants to know whether the Kalba sea constitutes a natural habitat for these bacteria. Formulate a hypothesis stating why or why not the Kalba sea area can be considered a natural habitat for such bacteria. Support your answer by discussing the role of evolution in contributing to the survival and thriving of “oil-eating" bacteria. Explain how and why these bacteria acquired these characteristics.arrow_forwardEvolutionary microbiologists developed a theory about a common ancestor for all eukaryotic cells. Below is a model of the theorized changes during the origin of eukaryotic cells. Prokaryotes are not capable of phagocytosis, or engulfing outside particles by creating a pocket in the cell membrane. Which of the following changes in early prokaryotes could be predicted to result in the emergence of eukaryotic organisms? A - the development of genetic transfer mechanisms in prokaryotes B - the evolution of predatory or parasitic relationships in prokaryotes C - the emergence of collections of cells functioning together in prokaryotes D = the expansion of internal structures to support larger individual cells in prokaryotesarrow_forward
- Which of the following contribute(s) to the differences between the Archaea and the bacteria? O A. Archaea lack muramic acid. O B. Archaea have isopranyl glycerol ethers rather than fatty acid esters in their membrane lipids. O C. Archaea differ from bacteria in their tRNA composition, ribosome structure, antibiotic sensitivity, translation elongation factors, initiator TRNA, and DNA-dependent RNA polymerase structure. O D. all of thesearrow_forwardQ8arrow_forwardMulticellular organisms such as plants and animals belong to which domain?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