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Reaction specificity
Some enzymes catalyze only one reaction acting on a specific substrate. Example: urease and catalase acts only on urea and hydrogen peroxide, respectively. This is also called absolute specificity.
Many enzymes can catalyze same type of reactions (phosphate transfer, oxidation-reduction, hydrolysis etc.) in several structurally-related compounds. Example: carboxypeptidase acts on protein chains and removes one amino acid at a time from the C-terminal, irrespective of the nature of zimino acid.
A substrate caa undergo many reactions but in a specific reaction, an enzyme will catitlyze only one of these reactions. Example: citrate synthase converts oxaloacetate to citrate in the presence of acetyl-CoA. But, in absence of acetyl- CoA, oxaloacetate is acted upon by a different enzyme malate dehydrogenase with the formation of malate.
Explain the Scanning Electron Microscope It can be used to observe intact cells or cell components directly. Then sections are not necessary. It is used for visualizing surface
DNA sequencing is the process of reading the nucleotide bases in a DNA molecule. It includes any technology or method which is used to verify the order of the four bases- guanine,
Explain about the Oncogenic Viruses? Certain viruses that interfere with the functions of the regulatory genes have been identified. These viruses are called oncogenic viruses.
what are the general characteristicss of porifera
how do work in human body and animals
Ribonucleases and deoxyribonucleases These enzymes are responsible for the degradation of dietary nucleic acids. Ribonucleases and deoxyribonucleases secreted by the
What is signifying by "gene locus"? The Gene locus (locus means place) is the location of a gene in a chromosome that is the position of the gene in a DNA molecule
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Define Tissue Distribution and Regulation of Calcium Concentration? As already discussed, development and preservation of bone mass is quantitatively an important function of c
What is optic nerve The optic nerve contains more than one million axons that initiate in the ganglion cell layer of the retina. This structure originatcs at the back of the e
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