Which of the following activities of soil bacteria does not contr...

Question

Which of the following activities of soil bacteria does not contribute to creating usable nitrogen supplies for plant use?
a. the fixation of atmospheric nitrogen
b. the conversion of ammonium ions to nitrate ions
c. the decomposition of dead animals
d. the assembly of amino acids into proteins

Accepted Answer

Welcome back. Look at our next question here. It says which of the following statements describes the process of assimilation in the nitrogen cycle. Let's look through our answer choices. Choice A. Says. It is a process that converts atmospheric nitrogen into ammonia which is absorbed by organisms. Well this is not the process of assimilation. This is the process of nitrogen fixation. You can kind of remember that if you remember that there's carbon fixation that occurs in plants where CO2 is extracted from the atmosphere and converted into organic molecules. So this is not our answer. Choice B says the ammonia is converted to nitrates and then to night to nitrites and then nitrates. Well this is not the process of assimilation either. This is the process of nitrous fication. So that's not our answer either. Choice C. Says nitrates are converted into plant and animal protein DNA and RNA. Well this is our correct answer. Ah An assimilation. Plants absorb ammonium and nitrates in the soil and convert them into organic molecules that are then go on to become animal proteins as well as the nitrogen is incorporated with those proteins. So Choice C. Is our answer. And finally, Choice D. Says the conversion of nitrates to nitrogen gas. Well this is called D nitrous fication and it's carried out by denied flying bacteria in the soil. So that's not our answer either. So again which of the following statements describes the process of assimilation in the nitrogen cycle. And that's choice C. Nitrates are converted into plant and animal protein D. N. A. And R. N. A. See you in the next video.

Which of the following activities of soil bacteria does not contribute to creating usable nitrogen supplies for plant use? a. the fixation of atmospheric nitrogen b. the conversion of ammonium ions to nitrate ions c. the decomposition of dead animals d. the assembly of amino acids into proteins

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