Figure 53.8
-Considering the global nitrogen cycle depicted in the figure above, what is the limiting portion of the cycle for plants?
A) nitrogen lost to the atmosphere
B) nitrogen fixation by bacteria
C) internal nitrogen cycling in the oceans
D) industrial nitrogen fixation

Question

Figure 53.8
-Considering the global nitrogen cycle depicted in the figure above, what is the limiting portion of the cycle for plants?
A) nitrogen lost to the atmosphere 
B) nitrogen fixation by bacteria 
C) internal nitrogen cycling in the oceans 
D) industrial nitrogen fixation

Quizplus · Accepted Answer

Plants rely on the fixation of nitrogen by bacteria in order to obtain the necessary nitrogen for growth. Therefore, the limiting portion of the nitrogen cycle for plants would be the availability of fixed nitrogen through bacterial fixation.

Figure 53.8 -Considering the Global Nitrogen Cycle Depicted in the Figure Above