Molybdenum (mo), Biology

Assignment Help:

Molybdenum (Mo)

Mo is absorbed as molybdate (MOO2-4) ion by plants. Its uptake can be competitively reduced by SO2-4. The requirement of plants for Mo is very low. Mo is an essential component of two major enzymes, nitrogenase and nitrate reductase. The functional mechanism of both enzymes probably depends on valency changes of Mo.

The most important function of Mo in plant metabolism is in N assimilation. Mo deficiency resembles N-deficiency. Older leaves becoming chlorotic first, but in contrast to N-deficiency, necrotic symptoms rapidly appear at the leaf margins because of nitrate accumulation. In Cruciferae, in extreme deficiency of Mo, leaf laminae are not formed and only the mid rib is formed. The leaf thus appears like a whip and for this reason the deficiency is called 'Whip tail'.


Related Discussions:- Molybdenum (mo)

Explain gum karaya, Gum Karaya Gum karaya (sterculia gum) is the...

Gum Karaya Gum karaya (sterculia gum) is the dried gummy exudate from Sterculia urens Roxburgh and other species of Sterculia (Family: Sterculiaceae) or from Cochlosperm

Explain the lingual nerve and artery, Lingual nerve and artery It is th...

Lingual nerve and artery It is the branch of mandibular nerve which enters the oral cavity above the posterior edge of the mylohyoid muscle close to the 3 rd molar region proc

When aflatoxigenic molds can occur, Q. When Aflatoxigenic molds can occur? ...

Q. When Aflatoxigenic molds can occur? Occurrence: Aflatoxigenic molds can occur in warmer parts of the world and aflatoxicosis maybe produced in a wide range of tropical and s

Names of animals, write the names of these animals? 1.amoeba 2.sponge 3.hyd...

write the names of these animals? 1.amoeba 2.sponge 3.hydra 4.liverfluck 5.Iscariot 6.leech 7.insects 8.oyster 9.starfish 10.frog

How does the swim bladder of fishes work, How does the swim bladder of fish...

How does the swim bladder of fishes work allowing fishes to control their depth under water? From Hydrostatics it is called that an object does not sink if its density is equal

Excitation of heart - circulation, Excitation of Heart - Circulation T...

Excitation of Heart - Circulation The heart has an inherent capacity to contract rhythmically without any external stimulus. Proof of this is obtained when we see that the hea

Immobilisation of cells, Immobilisation of cells Immobilisation of cel...

Immobilisation of cells Immobilisation of cells enables Re-use of biomass by rotation of cells Separation of cells from the medium and Leaching of metab

Explain the chloride permeability, An impermeable membrane separates one li...

An impermeable membrane separates one liter of a 1M KCl solution in the left compartment from one liter of 1M NaCl solution in the right compartment.  At 2 AM today the membrane be

Define muscular strength component for physical fitness, Define Muscular st...

Define Muscular strength component for physical fitness? It is the ability of a muscle to exert force for a brief period of time. Upper-body strength, for example, can be measu

Human impact on nitrogen cycle , Human Impact on Nitrogen Cycle Human...

Human Impact on Nitrogen Cycle Human activities are profoundly affecting the cycling of nitrogen in nature. Over 30 x 10 6 metric tons/yr. of N 2 is fixed in the commercial

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd