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An element playing important role in nit...

An element playing important role in nitrogen fixation is

A

Molybdenum

B

copper

C

manganese

D

zinc

Text Solution

Verified by Experts

The correct Answer is:
A
Molybdenum is absorbed as molybdate by plants. It is involved in nitrogen metabolism including nitrogen fixation. It is a components of enzyme nitrogenase and acs as enzyme activator. Whiptail of cauliflower and premature leaf fall.
Copper is absorbed by the plant in ionic form. its deficiency causes necrosis, die back in citrus reclamation in legumes.
Manganese is absorbed by the plants as bivalent ion. it acts as enzyme activator. its deficiency causes interveinal chlorosis as well as yellowing of starch ad their subsequent degenerate.
Zinc is needed for bisynthesiis of IAA and also acts as enzyme activator. Its deficiency causes chlorosis, little leaf, rosette, white bud of maize and mottling of leaves.
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