Dodecyl trimethyl ammonium chloride

Glucose

Urea

Pyridinium chloride

maltase

lipase

zymase

pepsin

the concentration of reactant molecules at the active centres of the catalyst becomes high due to adsorption

in the process of adsorption , the activation energy of the molecules becomes large

adsorption produces heat which increases the speed of the reaction

adsorption lowers the activation energy of the reaction.

polar at outer surface but non polar at inner surface

polar at inner surface non polar at outer surface

distributed over all the surface

are present in the surface only.