Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 26, Problem 10TYPSS
PROCESS OF SCIENCE Suppose that you’ve been hired by a firm interested in using bacteria to clean up organic solvents found in toxic waste dumps. Your new employer is particularly interested in finding cells that are capable of breaking a molecule called benzene into less toxic compounds. Where would you go to look for bacteria that can
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Chapter 26 Solutions
Biological Science (6th Edition)
Ch. 26 - 1. What do some photosynthetic bacteria use as a...Ch. 26 - What are organisms called that use inorganic...Ch. 26 - Prob. 3TYKCh. 26 - Prob. 4TYKCh. 26 - 5. What has metagenomic analysis allowed...Ch. 26 - Prob. 6TYUCh. 26 - Prob. 7TYUCh. 26 - Prob. 8TYUCh. 26 - PROCESS OF SCIENCE Streptococcus mutans obtains...Ch. 26 - PROCESS OF SCIENCE Suppose that you’ve been hired...
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- Which of the following is an example of a chemoorganoheterotroph? A.) An organism that gets its energy for ATP from the sun and its C from other organisms B.) An organism that gets its energy for ATP from organic molecules and its C from other organisms C.) An organism that gets its energy for ATP from the sun and synthesizes C-C bonds from simple molecules D.)An organism that gets its energy for ATP from inorganic molecules and synthesizes C-C bonds from simple moleculesarrow_forwardDenitrification is which of the following? a. Organisms like algae, cyanobacteria and plants are capable of using light energy which is trapped by chlorophyll, to convert carbon dioxide and water into oxygen and glucose b. The first step in the synthesis of virtually all nitrogenous compounds c. The decomposers - certain soil bacteria and fungi e.g. ammonifying bacteria - break down proteins in dead organisms and animal wastes, releasing ammonium ions d. Nitrates are reduced to nitrogen gas by denitrifying bacteria e. Aerobic respiration requires oxygenarrow_forwardNitrogen and phosphorus added to beaches following an oil spill encourages the growth of natural oil degrading bacteria. Explain why the bacteria do not grow if nitrogen and phosphorus are not added?arrow_forward
- Suppose you have a bacterium, which is normally killed in an hour when growing in a medium containing penicillin. This bacterium is an auxotroph and requires tryptophan for growth. When placed in a medium lacking both tryptophan and penicillin, the bacterium neither grows nor dies for several hours. Question: Is it killed in an hour in a medium lacking tryptophan but containing penicillin? (Yes/No and explain briefly why).arrow_forwardC.B. van Niel is famous for his discoveries regarding photosynthesis in sulfur bacteria. Which of the following statements is true of his experiments? a. Van Niel found that oxygen created by plants is derived from water, not carbon dioxide b. He found that sulfur bacteria do not use light, but instead use hydrogen sulfide as a source of energy for producing sugars. c. Sulfur bacteria used water to produce hydrogen sulfide d. From his observations, he reasoned that all producers require a hydrogen source, but that source can vary. e. Both a) and d)arrow_forwardWhy is the study of how the different amounts of carbon change bacteria growth an important study?arrow_forward
- We know that a short duration of UV radiation could kill a large number of the cells. We also know that in the Pure Culture lab a very large number of bacteria existed in the soil. (If we had sampled other environments outside in nature, we would have found plenty of bacteria.) Based on these two pieces of information, explain whether bacteria could survive under sunshine? Give a logical reason.arrow_forwardDiscuss the possibility of life on Mars. Will extremophiles prove useful? Can you explain the upper-temperature limit to life unrelated to the stability of proteins or nucleic acids? How influential is microbial activity on the geological processes of mineral formation and deposition compared to biological processes? Can you argue both sides? What are the challenges and advantages of the use of extremeophiles in industrial or bioremediation applications?arrow_forwardA microbiology professor noted that in the fall when the apples are ripe, her cow, appropriately called Tipsy would stagger home from the apple orchard at night. What possibilities could you offer to explain Tipsy's behavior? Why don't you feel this way when you consume apples from the grocery store? – this has to do with alcohol fermentation, remember the apples that are ripe fall from the trees and microbes begin to break them down.arrow_forward
- Which of the following is an organism that obtains its energy from the transfer of electrons originating from chemical compounds and its carbon from an inorganic source such as CO2? photoautotroph Chemoheterotroph Chemoautotroph Photoheterotropharrow_forwardWhich type of prokaryote is shown in this image? A. Photoheterotroph B. Chemoheterotroph C. Photoautotroph D. Chemoautotropharrow_forwardReferring to the diagram above, where does pathway "A" occur? Where does pathway "B" occur? Remember to include BOTH prokaryotes and eukaryotes in your answer.arrow_forward
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