Previous year MCQs

General science UPPSC 2016 GS-I
Question

The plants receive nitrogen in form of

Answer & Solution

Answer: (Detailed Solution Below)

Option B: Nitrate

Detailed Solution:

The correct answer is “Nitrate”.
Plants primarily receive nitrogen in the form of Nitrate (NO3-). Nitrate (NO3-) is present in the soil and is taken up by plant roots through a process called nitrate assimilation.

Once inside the plant, nitrate is converted into various organic forms, such as amino acids and proteins, which are essential for plant metabolism.

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