Group( D )

.......... Hydrolyze glycosidic bond of carbohydrates)

All digestive enzymes are ....

.......The enzyme acts on a particular isomer (D- or L-isomers) ?

Reaction specificity Enzyme is specific to a particular reaction but not to substrate?

......... t is the ability of an enzyme to act on group of substrates that share either a common functional group (group specificity) or a common type of bond (bond specificity)

....... Enzyme acts on more than substrates one structurally related substrates?

Absolute substrate specificity Certain enzymes act on only one substrate and catalyse one reaction? محاضرة الثالثه

Induced-fit Mode The active site is flexible, not rigid.

Lock-and-Key Model There is a greater range of substrate specificity?

Lock-and-Key Model Only substrates with the matching shape can fit?

Michaelis and Menton described how the reaction velocity varies with enzyme concentration?

Michaelis and Menton proposed a simple model that account for simple of the feature of ....... reaction.

...... stabilizes charges or acts as proton donors?

....involved in acid-base catalysis.

....Contains specific amino acid residues that participate in the chemical reaction.

....... Brings substrate into the proper orientation for the reaction

.......Determines enzyme-substrate specificity.

........ Responsible for recognizing the substrate with high specificity.

All of them are active site characteristics except for:

.......Determines enzyme specificity?