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The function of enzymes in the living systems is to

$\begin {array} {1 1} (A)\;transport\: oxygen & \quad (B)\;provide\: immunity \\ (C)\;catalyse \: chemical\: reactions & \quad (D)\;provide\: energy \end {array}$

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Enzyme catalysis is the catalysis of chemical reactions by specializedproteins known as enzymes. Catalysis of biochemical reactions in the cell is vital due to the very low reaction rates of the uncatalysed reactions. The mechanism of enzyme catalysis is similar in principle to other types ofchemical catalysis. By providing an alternative reaction route the enzyme reduces the energy required to reach the highest energy transition state of the reaction. The reduction of activation energy (Ea) increases the amount of reactant molecules that achieve a sufficient level of energy, such that they reach the activation energy and form the product.
Ans : (C)
answered Mar 28, 2014 by thanvigandhi_1
 
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