3.2 Properties of enzymes | Mechanism of Enzyme Action | Fsc Biology class 11

#Enzymes #PropertiesOfEnzymes #EnzymesClass11 #FscBiology11 #irtisamsbiology Enzymes are biological catalysis. They are specialized proteins (except ribozymes) capable of catalyzing specific reactions in the cells. In the previous post, we have discussed the Structure and Functions of Enzymes. In the present post, we will discuss the Properties of Enzymes. What are the Properties of Enzymes? (1). Catalytic property: Ø Enzymes have extra-ordinary catalytic power. Ø They are active in very small quantities. Ø A small amount of enzyme is enough to convert a large quantity of substrates. (2). Specificity: Ø Enzymes are very specific in their action. Ø Particular enzyme acts on a particular substrate only. Ø Enzymes are also specific to a particular type of reaction. Ø In some rare cases, the specificity may not be too strong. Ø Enzymes show different types of specificity such as Bond Specificity, Group Specificity, Substrate Specificity, Stereoscopic specificity, Geometric Specificity and Cofactor Specificity. Sensitiveness to heat and temperature: Ø Enzymes are very sensitive to heat and temperature. (They are thermo-labile.) Ø The maximum activity of an enzyme will be at normal temperature. Ø Correct temperature for the maximum activity is called optimum temperature. Ø Enzymes will be inactive at very low temperature. (This the reason for preserving food and vegetables in the refrigerator) Fsc Biology lectures series by irtisamsbiology