BIOCHEMISTRY-ACHIEVE (1 TERM)
9th Edition
ISBN: 9781319402853
Author: BERG
Publisher: MAC HIGHER
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Chapter 24, Problem 39P
Interpretation Introduction
Interpretation:
The process of nitrogen fixation, and its importance should be detrmined.
Concept introduction:
Nitrogen fixation is the process by which the molecular nitrogen of the atmosphere is converted into ammonia or other nitrogenous compounds. Atmospheric nitrogen is unreactive and metabolically useless, so to make it useful, microorganisms convert it into useful nitrogenous compounds.
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Describe the fixation of molecular nitrogen in detail
Explain the centrality of nitrogen fixation to life and describe how atmospheric nitrogen is converted into biologically useful forms of nitrogen.
Describe the reactions by which fixed nitrogen is introduced into amino acids.
Chapter 24 Solutions
BIOCHEMISTRY-ACHIEVE (1 TERM)
Ch. 24 - Prob. 1PCh. 24 - Prob. 2PCh. 24 - Prob. 3PCh. 24 - Prob. 4PCh. 24 - Prob. 5PCh. 24 - Prob. 6PCh. 24 - Prob. 7PCh. 24 - Prob. 8PCh. 24 - Prob. 9PCh. 24 - Prob. 10P
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- What is the mode by which organisms acquire nitrogen from the surroundings How do we maintain a steady supply of amino acids in the body? please answer allarrow_forwardWhy must nitrogen fixation occur in an anoxic (i.e., oxygen-free) environment? a)Because H2 is an additional product of nitrogen fixation, and the combination of H2 and O2 would cause the cell to combust. b)Oxygen poisons the dinitrogenase enzyme by entering the FeMo cluster c)Oxygen competes as an electron acceptor in the ETC, so electrons cannot be passed to N2. d)Oxygen "steals" electrons from the dinitrogenase reductase, producing free radicals.arrow_forwardIdentify the two components of the nitrogenase complex and describe their specific tasks.arrow_forward
- Outline the role of amino acids as precursors of other nitrogen-containing compounds, using specific examples.arrow_forwardSuggest a reason why biosynthesis of amino acids and of proteins would eventually cease in an organism with carbohydrates as its only food source.arrow_forwardWhat is nitrogen fixation? What are the proteins involved? How do they participate in the fixation of Nitrogen? Why is nitrogen fixation so energetically costly?arrow_forward
- Describe the nitrogenase complex. How is the enzymeorganized? What are its unique components?arrow_forwardIdentify, by metabolic type, the microorganisms responsible for carbon and nitrogen fixation, and the mineralization of organic carbon and nitrogen under oxic and anoxic conditionsarrow_forwarda key function of most b vitamins is as a) hormones b) coenxymes in energy metabolism c) a source of kcals d) antioxidantsarrow_forward
- Explain how Arginine, Glutamic acid, and Aspartic acid be a source of energy in the metabolism of microorganisms.arrow_forwardExplain how the carbon skeletons of the amino acids are metabolized after nitrogen removalarrow_forwardExplain why a heterotrophic organism may require vitamins, whereas an autotroph does not.arrow_forward
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