Zinc (zn) - micronutrients, Biology

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.

Posted Date: 1/17/2013 2:59:26 AM | Location : United States

Related Discussions:- Zinc (zn) - micronutrients, Assignment Help, Ask Question on Zinc (zn) - micronutrients, Get Answer, Expert's Help, Zinc (zn) - micronutrients Discussions

Write discussion on Zinc (zn) - micronutrients
Your posts are moderated
Related Questions
What is inharmonious ecological interaction? Inharmonious, or negative, ecological interaction is that in which at least one of the participating beings is harmed.

Osmotic adjustment or Osmoregulation - Osmotic Stress If concentration of soluble matter (in the form of minerals and small organic molecules) builds up in the external medium

Cytokinins - Plant Growth Substances Folke Skoog observed that the cell division or differentiation is affected by AMP and other purines. A nucleic acid from yeast was also fo

Q. What is the parasite that causes toxoplasmosis? How is the disease transmitted and what are its typical manifestations? The Toxoplasmosis is caused by the protozoan Toxoplas

Potassium (K) - Macronutrients The main source of K + for plants comes from withering of K containing minerals. Potassium released by withering dissolves in the soil solution

If a lipid bilayer does not form in a test tube of phospholipids in a liquid solvent and instead the heads join together in a circular pattern, the most likely explanation is: a

Explain some Characteristic Features of Mucor? 1. Stolons characteristics of Rhizopus are absent in Mucor. The aerial mycelium in Mucor consists of branched hyphae, which grow

Q. What is the difference between obligate anaerobic beings and facultative anaerobic beings? Obligate anaerobic beings are those that cannot survive when oxygen is present. So

Explain Sickle cell anemia If 4% of a people are born with a severe form of sickle cell anemia. what percent of population will be resistant to malaria in spite of carrying

What characteristics of fatty acids are false? (Dissolves in water, used for energy storage, used to build lipids, found in triglycerides, found in steroids)?