Why is metabolic regulation necessary Why is metabolic regul

Solution

Regulation is essential for the cell to conserve microbial energy and material and to maintain metabolic balance. both catabolism and anabolism are regulated in such a way as to maximize efficiency of operation.It is needed in order to maintain the internal environment,in the face of changing external circumstances,taking into account the differing needs and abilities of cell types.Metabolic regulation is the basis of the biological control of metabolism,as it enables living cells to direct different pathways.Metabolic regulation helps to keep the living system in a chemically balanced state.

The most basic form of metabolic regulation occurs when genes instruct cells to produce enzymes and to regulate their quantity.Regulation of enzyme activity helps control metabolism Cells can regulate their metabolic pathways by controlling when and where their carious enzymes are active.It does this either by switching on and off the genes that encode specific enzymes or by regulation the activity of enzymes once they are made.Regulatory molecules change an enzymes shape and the functioning of its active site binding to a site elsewhere on the molecule via non covalent bonds.Allosteric regulation is the term used to describe any case in which a protein’s function at one site is affected by the binding of a regulatory molecule to a separate site.It may result in inhibition or stimulation of an enzymes activity.
The localization of metabolites and enzymes in different parts of a cell,a phenomenon called metabolic channeling,influences pathway activity.Critical enzymes often are directly stimulated or inhibited to alter pathway activity rapidly.The number of enzyme molecules also may be controlled.The more catalyst molecules present,the greater the pathway activity.