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)

Phototheraphy and exchange transfusion, PHOTOTHERAPHY AND EXCHANGE TRANSFUS...

PHOTOTHERAPHY AND EXCHANGE TRANSFUSION: This section will enable you to acquire skills related to phototherapy and exchange transfusion. You will also review the indication

Which hormone secreted by the growing ovarian follicles, Q. What is the hor...

Q. What is the hormone secreted by the growing ovarian follicles? What is the action of that hormone upon the uterus? The follicles that are growing after menses secrete estrog

Make a sketch of a petroleum trap, Create a sketch of a petroleum trap. Wri...

Create a sketch of a petroleum trap. Write a history for how it came to the present (sketched) form following the rules of logical deduction.

Explain cancer and inhibition of tumorigenesis, Explain Cancer and Inhibiti...

Explain Cancer and Inhibition of Tumorigenesis? Polyphenols appear to play a preventive role although the molecular mechanisms of action and applicability to human cancer preve

How do embryos of placental mammals excrete nitrogen wastes, Q. How do embr...

Q. How do embryos of placental mammals excrete nitrogen wastes? Placental animals including embryos and excrete urea, In the adult placental mammal urea is excreted through the

Explain in details amino acid, Explain in details Amino Acid? Amino Ac...

Explain in details Amino Acid? Amino Acids :   There are 20 common amino acids, with a few more found in lower organisms. Adult humans require a diet that includes at least 8

Which is better to grow plants in rock sand or soil, Explain which is bette...

Explain which is better to grow plants in Rock sand or soil? Ans) When we grew plants inside, with no wind, and the plants in the rocks grew superior to the plants that were gr

Concept of species, Many definitions of species have been offered, but none...

Many definitions of species have been offered, but none of them proved to be satisfactory. The definitions did not categorically provide the basis to decide whether two similar gro

How is excretion done in fishes, How is excretion done in fishes? Fish...

How is excretion done in fishes? Fishes have a pair of kidneys that filtrate the blood. Bony fishes excrete nitrogen as ammonia, NH 3 , (they are ammoniotelic) and cartilagino

What is the difference among dna and rna, Concerning the nitrogen-containin...

Concerning the nitrogen-containing bases that participate in nucleotides, what is the difference among DNA and RNA? In DNA nucleotides can be formed of adenine (A), thymine (T)

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