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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.
Why do substances react with each other? Chemical reactions occur due to the products of the reaction have less energy than the reactants (drive toward less energy). These reac
Define the Water activity - Microbial Survival? It is the amount of water available to the organism. In general, requirement for water activity is more for bacteria (minimum 0.
what is a proliferation
Q. What are the major substances transferred from the mother to the fetus through the placenta? And from the fetus to the mother? From the mother to the fetus the major transfe
What important changes will you find in the tissue of the fat person from those of a lean and thin person
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The cell cycle undergoes a sequence of changes which involve a period of growth replication of DNA, Followed by cell division. This sequence of changes is called cell cycle.
Surveys - Accidents in Industries The surveys done in industries have pointed out that leading cause of accidents is the overexertion or workers working beyond their physical
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Echocardiography Utilizes principle of ultrasound for visualization of heart and great vessels. It uses sound in the frequency of 1-10 MHz. As the frequency of probe increase
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