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Summarize the Nitrogen Cycle attached in points.

Summarize the Nitrogen Cycle attached in points.

Biology 2e
Biology 2e
2nd Edition
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark
Chapter22: Prokaryotes: Bacteria And Archaea
Section: Chapter Questions
Problem 3VCQ: Figure 22.19 Which of the following statements about the nitrogen cycle is false? Nitrogen fixing...
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Summarize the Nitrogen Cycle attached in points.

The Nitrogen Cycle Nitrogen is extremely abundant in the atmosphere. However, it is not easy to acquire directly from the abiotic environment. Nitrogen enters and leaves the atmosphere through a complex biochemical pathway in the nitrogen cycle (Figure 6, next page). es ed Most of the nitrogen used by living things is taken from the atmosphere Dent by certain bacteria in a process called nitrogen fixation. These micro- organisms convert nitrogen gas into a variety of nitrogen-containing compounds including nitrates, nitrites, and ammonia. Lightning and ultraviolet light also fix small amounts of nitrogen. In addition, humans add nitrogen to the soil as fertilizer. Once in the soil ecosystem, the nitrogen-rich compounds are available to producers. After the nitrogen is albsorbed, it is passed from producer to consumer and on up the food chain. Many animals consume more nitrogen than they can use and excrete the excess in the form of urea or ammonia. A dead organism's nitrogen-rich compounds are taken in by decomposers or are released back into the environment. These compounds are either recycled again by soil micro-organisms or they are converted by denitrifying bacteria back into nitrogen gas which then re-enters the atmosphere.
Transcribed Image Text:The Nitrogen Cycle Nitrogen is extremely abundant in the atmosphere. However, it is not easy to acquire directly from the abiotic environment. Nitrogen enters and leaves the atmosphere through a complex biochemical pathway in the nitrogen cycle (Figure 6, next page). es ed Most of the nitrogen used by living things is taken from the atmosphere Dent by certain bacteria in a process called nitrogen fixation. These micro- organisms convert nitrogen gas into a variety of nitrogen-containing compounds including nitrates, nitrites, and ammonia. Lightning and ultraviolet light also fix small amounts of nitrogen. In addition, humans add nitrogen to the soil as fertilizer. Once in the soil ecosystem, the nitrogen-rich compounds are available to producers. After the nitrogen is albsorbed, it is passed from producer to consumer and on up the food chain. Many animals consume more nitrogen than they can use and excrete the excess in the form of urea or ammonia. A dead organism's nitrogen-rich compounds are taken in by decomposers or are released back into the environment. These compounds are either recycled again by soil micro-organisms or they are converted by denitrifying bacteria back into nitrogen gas which then re-enters the atmosphere.
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