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 42, Problem 4TYU
Summary Introduction
Introduction:
The bacteria fixing the nitrogen content for the availability of plants are called nitrogen fixing bacteria. The inorganic nitrogen or atmospheric nitrogen is converted into organic nitrogen for the easy absorption by plants.
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Define the following terms:a. nitrogen fixationb. nitrogenasec. nitrogen assimilationd. amino acid poole. nitrogen cycle
Which of the following statements is/are TRUE for nitrogen fixation?
A. Process is performed by nitrifying soil bacteria.
B. Performed by bacteria present in the roots of all plants.
C. Reduction of N2 to NH3.
D. Consumes a negligible amount of ATP.
Nitrification”is the conversion of:a.carbon compounds to nitrogen compounds.b.nitrogen gas (N2) to ammonia (NH2).c.ammonium (NH4+) to nitrate (NO3-).d.ammonia (NH3) to nitrogen gas (N2).e.ammonium (NH4+) to nitrite (NO2-).
Chapter 42 Solutions
Campbell Biology in Focus
Ch. 42.1 - Why is the transfer of energy in an ecosystem...Ch. 42.1 - WHAT IF? You are studying nitrogen cycling on the...Ch. 42.1 - MAKE CONNECTIONS Use the second law of...Ch. 42.2 - Why is only a small portion of the solar energy...Ch. 42.2 - How can ecologists experimentally determine the...Ch. 42.2 - Prob. 3CCCh. 42.2 - Prob. 4CCCh. 42.3 - If an insect that eats plant seeds containing 100...Ch. 42.3 - WHAT IF? Detritivores are consumers that obtain...Ch. 42.4 - Prob. 1CC
Ch. 42.4 - Prob. 2CCCh. 42.4 - Prob. 3CCCh. 42.5 - Prob. 1CCCh. 42.5 - How do bioremediation and biological augmentation...Ch. 42.5 - Prob. 3CCCh. 42 - Prob. 1TYUCh. 42 - Which of these ecosystems has the lowest net...Ch. 42 - Prob. 3TYUCh. 42 - Prob. 4TYUCh. 42 - Which of the following has the greatest effect on...Ch. 42 - Prob. 6TYUCh. 42 - Prob. 7TYUCh. 42 - Prob. 8TYUCh. 42 - INTERPRET THE DATA Draw a simplified global water...Ch. 42 - SCIENTIFIC INQUIRY Using two neighboring ponds in...Ch. 42 - Prob. 11TYUCh. 42 - FOCUS ON ENERGY AND MATIER Decomposition typically...Ch. 42 - Prob. 13TYU
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- Which of the following is a process of the nitrogen cycle that involves the conversion of nitrogen gas to ammonia? a.Nitrogen fixation b.Nitrification c.Ammonification d.Denitrificationarrow_forwardWhich of the following processes is/are used to fix atmospheric N2? a.bacterial action b.Haber process c.lightning d.transaminationarrow_forwardWhich of the following statements about the nitrogen cycle is false? a. Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4 +). b. Denitrification by bacteria converts nitrates (NO3 −) to nitrogen gas (N2). c. Nitrification by bacteria converts nitrates (NO3 −) to nitrites (NO2 −). d. Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.arrow_forward
- Which form of Nitrogen is not available for organism growth represents which of these below?a. NH4+b. NO3-c. N2d. all of these3arrow_forwardWhich of the following is true regarding plants and the nitrogen cycle? a. Nitrogen is a micronutrient b. Nitrogen is used for regulation of ion channels c. None of the above are true d. Nitrogen gas is fixed directly by plants e. Plants use fungi to fix nitrogenarrow_forwardFigure 22.19 Which of the following statements about the nitrogen cycle is false? Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil. Denitrifying bacteria convert nitrates (NO3 ) into nitrogen gas (N2). Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic compounds. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+).arrow_forward
- Define the following terms: a. nitrogen fixation b. MoFe protein c. Fe protein d. nitrogen assimilation e. dead zonearrow_forwardThis trace element is essential and required at the lowest levels in plants, and therefore deficiencies are very uncommon. It is involved in nitrogen assimilation. Select one: a. Mo b. Ni c. P d. Mg e. Narrow_forwardWhat microbes is highest in agricultural lands? A. Aerobic nitrogen fixing bacteria B. Anaerobic nitrogen fixing bacteria C. Aerobic heterotrophic bacteria D. Anaerobic heterotrophic bacteriarrow_forward
- Explain the consequences to the nitrogen gas in the atmosphere if all the nitrogen- fixation prokrayotes would die suddenly.arrow_forwardwhat process can give plants an advantage because of the presence of these bacteria undergoing the following process can provide them with nitrogen for the production of protein? A. nitrifying B. denitrifying C. ammonification D. nirtogen fixingarrow_forward1. Which of the following is most likely to result in "immobilization"? A. Assimilation B. Ammonification C. Sulfur oxidation D. Mineralization E . Denitrification 2. What metabolic type in the carbon cycle would most likely benefit from living in the presence of a starch-digesting microbe in an anaerobic environment? A Sugar fermenter: B. Methanogen C. Carbon fixer D. Methane oxidizer E CO reducer 3. Which two of the following choices are the goals of pasteurization? A Kill all spoilage microbes B. Sterilize C. Kill all pathogens D. Reduce spollage microbes E. Reduce pathogen numbersarrow_forward
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