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 amylose, Amylose Amylose molecules have molecular weights rangi...

Amylose Amylose molecules have molecular weights ranging from 10 4 -20 6 . Amylose can form an extended shape (hydrodynamic radius 7-22 nm) but generally tends to wind up into

Percussion - criteria for endosteal implants, Percussion - criteria for end...

Percussion - criteria for endosteal implants? It is neither an indicator of clinical health nor of rigid fixation. Ringing sound that occurs on percussion corresponds to the pr

Explain about salivary glands in humans, Q. What is the location of the sal...

Q. What is the location of the salivary glands in humans? There are six major salivary glands and they are located one in each parotid gland, two beneath the mandibles (submand

Phylogeny, why do i do it for class/

why do i do it for class/

Define food quality factors and their measurement, Define Food quality fact...

Define Food quality factors and their measurement? Appearance; textural, flavour, nutritional, sanitary and keeping factors; quality standards, objective and organoleptic evalu

Important Value Index (IVI) calculation, How can we calculate the IVI from ...

How can we calculate the IVI from a total number of (30) quadrats (each 30 x 30 m quadrats)

Indicate the probability of producing, I have no idea how to do this: two g...

I have no idea how to do this: two gene loci, A and B, assort independently, and alleles A and B are dominant over alleles a and b. Indicate the probability of producing: an AB phe

Chemical element is the central in the chlorophyll molecule, Q. Which chemi...

Q. Which chemical element is the central in the chlorophyll molecule? The chemical element that is the central in the chlorophyll molecule is magnesium. One atom of magnesium

Define gastrointestinal tract - excretion of zinc in humans, Define Gastroi...

Define Gastrointestinal tract - Excretion of Zinc in Humans? Majority of zinc is lost from the body in faeces. Endogenous zinc in the form of enzymes or metallo-proteins is sec

Endosperm with chalazal haustorium, Endosperm with Chalazal Haustorium ...

Endosperm with Chalazal Haustorium In Grevillea robusta, a member of Proteaceae the endosperm is of the free nuclear type. The upper part of endosperm becomes cellular, where

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