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

explain alternative processing, Alternative polyadenylation sites Exa...

Alternative polyadenylation sites Exact pre-mRNAs hold more than single group of signal sequences for 3' end polyadenylation and cleavage.   In  some  cases,  the  area  of  t

Explain the uses of isp in meat products, Explain the Uses of ISP in meat p...

Explain the Uses of ISP in meat products Meat products  The main application of ISP in connection with meat and related products is based on the use of texturized ISP, in

What are the main harms caused by vitamin a deficiency, What are the main h...

What are the main harms caused by vitamin A deficiency? How does this vitamin act in the physiology of vision? Deficiency of vitamin A (retinol) might be cause night blindness

Free-hand sectioning of plant tissue (stem), What are the processes involve...

What are the processes involved in the preparation of plant tissue for free hand sectioning?

Determine the proecss of contrast sense, Contrast sense Sense of contr...

Contrast sense Sense of contrast is the ability to perceive slight changes in luminance between regions which are not separated by definite borders. This is as important as to

Animal kingdom/pisces, similarity between pisces & mammals about dirhynous ...

similarity between pisces & mammals about dirhynous condition......

Protozoa, Locomotion,nutrition and reproduction in ptotozoa

Locomotion,nutrition and reproduction in ptotozoa

Skeletal system - ribs, RIBS- Curved or stretched 'S' sha...

RIBS- Curved or stretched 'S' shaped bones. 12 pairs, form thoracic basket, attached by head part to vertebral column and by tail part to sternum. 7 pairs a

Individual neurons communicate, A human is better able to ride a bike becau...

A human is better able to ride a bike because individual neurons communicate information faster than modern computer chips. true or false

Illustrate about the ward halstead and luria, Illustrate about the Ward Hal...

Illustrate about the Ward Halstead and Luria The linear approach is best exemplified in the work of A.R. Luria and various collaborators, while the configurational approach is

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