In this article we will discuss about the Michaelis-Menten Constant and Significance of Michaelis-Menten Constant. Michaelis-Menten Constant: In an enzyme catalysed reaction when there is large excess of substrate and the enzyme concentration is held constant, if substrate concentration (S) is plotted against velocity (V) or reaction rate, a hyperbolic curve is obtained (fig. 10.13). This type of plot is [...]
The below mentioned article highlights the major functions of isoenzymes in plants. Some enzymes occur in multiple or more than one form in the same species, tissue or even in the same cell which catalyse the same biochemical reaction but have different molecular structure and kinetic properties. They are generally made up of similar or dissimilar sub-units (polypeptide chains) in [...]
Sometimes it has been found that when a series of reactions is catalysed by a number of enzymes in sequence, the accumulation of the final end-product may cause inhibition in the activity of the first enzyme of the series. This inhibition due to a compound (final end product) which is totally different in structure from the substrate of the enzyme [...]