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Questions and Answers
Which of the following is the primary source of energy for microorganisms capable of fixing nitrogen into a form usable by animals?
Which of the following is the primary source of energy for microorganisms capable of fixing nitrogen into a form usable by animals?
- Photosynthesis of host plants (correct)
- Soil nutrients
- Lightning
- Oxidation and reduction (respiration)
Which process is used to convert nitrogen for use in fertilizers industrially?
Which process is used to convert nitrogen for use in fertilizers industrially?
- Special catalysts which drive the reduction of N2 by H2 (correct)
- A simple, energy efficient reaction of N2 with water
- A reaction between nitric acid and hydrogen gas
- A cryogenic (very low temperature) process between N2 and H2
Which bacteria are capable of nitrogen fixation according to the text?
Which bacteria are capable of nitrogen fixation according to the text?
- Klebsiella
- E. coli (correct)
- Cyanobacteria
- Azobacter
How is ammonia incorporated into amino acids according to the text?
How is ammonia incorporated into amino acids according to the text?
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What protects nitrogenases from oxygen to prevent inactivation?
What protects nitrogenases from oxygen to prevent inactivation?
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