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Biology-Related Homework Help General Biology Topic started by: dundlermuffin on Mar 29, 2018



Title: Describe the five steps of the nitrogen cycle. Include the bacteria and other organisms that are ...
Post by: dundlermuffin on Mar 29, 2018
Describe the five steps of the nitrogen cycle. Include the bacteria and other organisms that are involved
  in each step. What will be an ideal response?

Question 2

Diagram the hydrological cycle. Include the terms evaporation, transpiration, percolation,
  groundwater, runoff, condensation, and precipitation. What will be an ideal response?


Title: Describe the five steps of the nitrogen cycle. Include the bacteria and other organisms that are ...
Post by: Fnsame on Mar 29, 2018
Answer to q. 1

Concepts to Consider: Nitrogen is fixed by various bacteria, including cyanobacteria, into ammonia
and organic forms; nitrification is the conversion of ammonia to nitrate, which is utilized by plants in
the process of assimilation; animals also assimilate nitrogen by eating plants; bacteria convert organic
nitrogen into ammonia by ammonification; bacteria further reduce nitrate into gaseous nitrogen in the
process of denitrification, a net loss of nitrogen to the ecosystem.

Answer to q. 2

Concepts to Consider: Starting with a cloud, the water condenses and ultimately falls to Earth either
as precipitation over land or the ocean; water percolates through the soil and may reach the
groundwater, be taken up by plants, or run off into bodies of water; water taken up by plants may be
transpired and reenter the atmosphere in this way. Water also reenters the atmosphere via evaporation
from bodies of water


Title: Describe the five steps of the nitrogen cycle. Include the bacteria and other organisms that are ...
Post by: dundlermuffin on Mar 29, 2018
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