Shape Selective Catalysis By Zeolites|Enzymes (Bio-Catalyst)|Characteristics Of Enzyme Catalysts |Mechanism Of Enzyme Catalysed Reactions|Active Sites Or Catalytic Sites|Colloidal State|Dispersed Phase And Dispersed Medium|OMR

Statements : Enzymes are protenisns and enrzyme catalyused reactions re called biolgical catalysis . Explanations : The activity of enzyme as catalyst is increased in presence of vitamins .

Characteristics OF Catalyst, Theory OF Catalysis || Intermediate Compound Formation Theory || Absorption Theory || Shape Selective Catalysis ||Zeolites|| Enzyme Catalysis

Rate of a reaction increases by 10^6 times when a reaction is carried out in presence of enzyme catalyst at same temperature. Determine change in activation energy.

Arrange the steps of catalytic action of an enzyme in order an choose the right option (A) The enzyme releases the products of the reaction and the enzyme is free to bind to another substrate (B) The active site of enzyme is in close proximity of the substrate and breaks the chemical bonds of the substrate (C) The binding of substrate induces the enzyme to alter its shape fitting more tightly around the substrate (D) The substrate binds to the active site of the enzyme fitting into the active site

Arrange the steps of catalytic action of an enzyme in order and select the correct option I. The enzyme releases the products of the reaction and the enzyme is free to bind to another substrate II. The active site of enzyme is in close proximity of the substrate and breaks the chemical bonds of the substrate III. The binding of substrate induces the enzyme to alter its shape fitting more tightly around substrate. VI. The substrate binds to the active site of the enzyme

Which of the following set is having correct statements for enzyme catalyst? 1. Each enzyme is specific for a given reaction 2. the enzyme activity is maximum at optimum pH 3. The enzymatic activity is increased in presence of certain substances called co - enzymes 4. The favourable temperature range of enzyme activity is between 50-60""^(@)C

The given graph depicts the effect of temperature on the activity of the two enzymes A and B that catalyze the same reaction. Select the correct statement (s) for these results A. The rate of reaction in each case increases with increase in temperature and declines at higher temperatures due to denaturation of the enzyme B. Both the enzymes A and B are thermolabile C. At higher temperature the reactants become highly energized and fail to interact with active site, thus decreasing the rate of reaction D. The enzyme A is from a mesophilic organism, whereas the enzyme B is from a thermophilic organism