Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
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Chapter 24.4, Problem 2CC
WHAT IF? What would the discovery of a bacterial species that is a methanogen imply about the evolution of the methane-producing pathway?
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Although chemoautotrophs serve as the primary producers near hydrothermal vents, animals there still ultimately depend on the photosynthetic activities of plants and cyanobacteria. Why?
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Chapter 24 Solutions
Campbell Biology in Focus
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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- Please answer all questionsarrow_forwardsolve these no copy from google describe reason in your own and good answer will get like like 1)One of the functions of metabolism is to provide the energy needed to all the processes required by the body. * a)true b)false 2)The energy to reduce CO2 to C of cellular compounds is derived from a: * a)Oxidation b)Reduction c)Incorporation 3)The red and green bacteria are: * a)Photochemotrophic b)photoheterotrophs c)photoautotrophsarrow_forwardTable 4 Gross productivity (mg/L/hr) Net productivity (mg/L/hr) Test tube % Light 2.38 1.52 100% -1.41 2 | -2.28 -3.62 - 3.89 -3.96 3 65% 25% .17 4 -0.95 -.17 10% 6. 2% LOarrow_forward
- Q8. Which of the following statements is thought to be the underlying reason for why a typical eukaryotic cell is more complex than a typical aerobic bacterial cell? A. A eukaryotic cell has a greater plasma membrane area / cell volume ratio than a bacterium. B. A eukaryotic cell has a greater number of electron transport chains than a bacterium. C. An aerobic bacterium lacks membranes required for electron transport. D. An aerobic bacterium cannot undergo oxidative phosphorylation.arrow_forwardAnswer all the following questions briefly and concisely 1. Where does photosynthesis occur in a phototrophic eukaryote? 2.Why would a bacteria that uses photosynthetic processes have various colors? 3. How can fermentation be used to distinguish between different microorganism types? 4. How are routes for glucose metabolism connected to the byproducts of lipid and protein degradation? 5. Why would a living thing choose to engage in cyclic phosphorylation as opposed to noncyclic phosphorylation? 6. What role do photosynthetic pigments play in the complex that captures light? 7. Why are autotrophic organisms required to fix CO2 and also respire or ferment in addition to this?arrow_forwardA- Name 5 organisms that can carry out nitrification. B- Write the chemical reaction. C- What enzyme carries out the process? Briefly explain how it works.arrow_forward
- 1. What are the products of photosynthesis? 2 What are the reactants of cellular respiration? 3. Why do we need nitrogen fixing bacteria? 4. List at least 2 reasons why living things need nitrogen.arrow_forwardTease 10. Like rotenone, cyanide is a broad-spectrum poison that affects many organisms. In fact, most poisons that act on the citric acid cycle, electron transport chain, and ATP synthase are broad- spectrum. What does this suggest about the evolution and conservation of these pathways?arrow_forwardConsider the diversity of oxygenic and anoxygenic photosynthesis in bacteria: a. Which group(s) of bacteria carry out oxygenic photosynthesis? b. Which group(s) of bacteria carry out anoxygenic photosynthesis?arrow_forward
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