The nitrogen cycle involves several key processes including nitrogen fixation, nitrification, assimilation, ammonification, and denitrification. Nitrogen is essential for building organic molecules like proteins and nucleic acids.
Consider the following statements:- i. Nitrification is a process in which nitrates are converted to nitrogen. ii. Denitrification is a process in which nitrogen is converted into nitrates. iii. Nucleic acids (DNA and RNA) contain nitrogen. iv. During atmospheric lightening, nitrogen in the air gets converted into oxides of nitrogen. v. Nitrogen fixing bacteria are present in root legumes. Choose the correct statement(s) :
Asked in HAS Prelims 2021 · Topic: Plant Nutrition (Nitrogen Cycle and Nitrogen Fixation)
More Biology questions
- A biological process by which nitrate is converted into nitrogen gas is called
- Which of the following plant is not helpful in nitrogen fixation ?
- More than 90 percent of all nitrogen are fixed as ammonia, nitrites, and nitrates by soil microorganisms. Symbiotic bacteria associated with leguminous plants fix nitrogen by the formation of root nodules. In which of the following plant nitrogen fixation does not occurs?
- Which of the following are nitrogen-fixing plants ? Alfalfa 1. Amaranth 2. Chickpea 3. Clover 4. Purslane (Kulfa) 5. Spinach 6. Select the correct answer using the code given below :
- Pulse crop which does not fix atmospheric nitrogen is
- Which one among the following hormones inhibits the growth activity in plants ?
- Stomatal closure in response to stress is mediated by
- Which hormone act as plant growth inhibitors ?