Zinc (zn) - micronutrients, Biology

Assignment Help:

Zinc (Zn) - Micronutrients

In its function in some enzyme systems, zn2+ resembles Mn2+ in that it brings about substrate binding and conformational changes in enzymes. A number of enzymes are thus activated in more or less the same way by Mn2+, Mg2+, or zn2+. Zn is actively involved in the N metabolism of the plant.

In Zn deficient plants, protein synthesis and protein levels are markedly lowered, and amino acids and amides accumulate. Zn deficiency affects protein metabolism through the inactivation of RNA polymerase. It affects structural integrity of ribosomes, and enhances RNA degradation by increasing RNase activity. Zn is also required for the synthesis of indole acetic acid from tryptophan.


Related Discussions:- Zinc (zn) - micronutrients

Determine the principles of suturing, Determine the Principles of suturing ...

Determine the Principles of suturing These are universal principles which are applicable in all aspects not just implant surgery: 1. Sutures should always be inserted throug

Name mimicry by which insect mimics insec for protection, From the followin...

From the following, name the type of mimicry by which a palatable, acceptable insect mimics an unfavorable, noxious insec for protection. a) Batesian mimicry (pron: BATE-see-an

Management for poisoning and overdose, Management  for Poisoning  and Ove...

Management  for Poisoning  and Overdose: The following data should be obtained at the time of initial contact.  Phone Number:  getting the caller's telephone number  is n

Define symptoms in nervous system of pernicious anaemia, Define symptoms in...

Define symptoms in Nervous system of pernicious anaemia? Parasthesia (numbness and tingling) occurs in fingers and toes.  Occasionally, there are objective signs of involvement

Explain sexually-transmitted diseases, Sexually-transmitted diseases M...

Sexually-transmitted diseases Many travelers have new sexual contacts during their journeys and are at increased risk for acquiring sexually transmitted diseases including HIV

Changes in animal life during xerosere, Changes in Animal Life during Xeros...

Changes in Animal Life during Xerosere Just like the hydrosere, there occur successive changes in animal life during the xerosere. A few mites are usually found associated wi

What we need undergloves, Q. What we need Undergloves? These are a cott...

Q. What we need Undergloves? These are a cotton glove worn under the treatment glove for those operators experiencing discomfort to the skin on the hands. These must be replace

Explain the energy flow of ecology, Explain the energy flow of ecology? ...

Explain the energy flow of ecology? Energy flow: As you can see, energy flow is one way in an ecosystem. Energy is not recycled. The ultimate source of energy that powers eco

Breeder select for in a cereal crop, What characteristics might a breeder s...

What characteristics might a breeder select for in (i) a cereal crop, (ii) a farm animal? (i) In a cereal variety, a breeder might select for high yield; disease-, frost- or dr

Define two major aspects of nutrition economics, Define two major aspects o...

Define two major aspects of nutrition economics? There are two major aspects of nutrition economics. These aspects are: 1) Quantities of food commodities and their developme

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