Mineral Nutrition In Plants Question 135

Question: Which one of the following elements plays an important role in biological nitrogen fixation [BHU 1985; CBSE PMT 1995; AIEEE 2004]

Options:

A) Molybdenum

B) Manganese

C) Copper

D) Zinc

Show Answer

Answer:

Correct Answer: A

Solution:

Molybdenum is required for nitrogen fixation.

Nitrate metabolism depends upon enzyme nitrate reductase.

It is an activator of nitrate reductase.

Therefore, the element is important for nitrogen fixation.

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