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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.
Distribution of Stomata There are two parameters normally used for expressing the distribution of stomata. Stomatal frequency: The number of stomata per unit area
A field trip to observe flowers:- Plan a field trip to view flowers in bloom. If no interesting wildflowers can be found growing near the school, the trip can be planned to a p
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(i) On Figure, draw a ring around the number which indicates the energy entering the system via photosynthesis. (ii) The total energy available to the plants in the ecosystem
The holoenzyme is denatured by heat at very high temperature. It is found that two polypeptides, although denatured, contains chains that remain together as a unit, while two other
Treatment options for ailing and failing implants are varied. The clinician should start conservatively and progress to more aggressive therapy. The overall goal of therapy is
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Critical thinking the organization of a rock is much simpler than that of living things. By what other criteria can a rock be well-known from living things? Rocks are not comp
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