Nitrogen Cycle As Resource
Nitrogen Cycle As Resource
Nitrogen Cycle
Nitrogen comprises 78 to 79 per cent of the earth’s atmosphere. It is an important constituent of plant and animal protein, which forms the structural and functional component of cells. Nitrogen is also present in DNA, RNA, vitamins, urea and alkaloids. Before studying the nitrogen cycle, you should understand the following processes.
In which from plants take up nitrogen? | |||
| Right Option : A | |||
| View Explanation | |||
Nitrogen is present in ________________________. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) Nitrogen comprises 78 to 79 per cent of the earth’s atmosphere. (b) Nitrogen is present in DNA, RNA, vitamins, urea and alkaloids. (c) Atmospheric nitrogen is used only by a few simple organisms. | |||
| Right Option : D | |||
| View Explanation | |||
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