bulk solvent and reduces the catalytic activity of the enzyme
Correct Answer:- Option-D
Question22:-Select the statement that is correct.

A:-Enzymes can facilitate the rate of reaction by binding very tightly to the
substrate

B:-Enzymes often lower the activation energy by destabilizing transition state
intermediates

C:-Enzyme can facilitate the rate of reaction by preventing the substrates from
changing its ionic state

D:-The presence of an enzyme has no effect on AG°
Correct Answer:- Option-D

Question23:-Turn over number ‏مم‎
‎A:-Has units of 1/time

B:-Has units of substrate concentration
C:-ls a ratio of the rate constants for the formation of ES and of product

D:-For a homogenous enzyme catalytic activity is calculated by dividing Vinx by
protein concentration

Correct Answer:- Option-A

Question24:-All are enzymes used as therapeutic agents except
A:-Streptokinase
B:-Papain
C:-Urokinase
D:-Uricase
Correct Answer:- Option-B

Question25:-All statements regarding isoenzymes are correct except
A:-Chemically and immunologically distinct forms of an enzyme
B:-Same forms with similar physical properties
C:-Catalyzes same reaction
D:-Same quaternary structure
Correct Answer:- Option-B

Question26:-All are regarding the Michaelis constant (x,,) except
A:-The ಸ. value is substrate concentration at half maximal velocity
B:-x,, is independent of enzyme concentration

C:-At high concentration of substrate is1})x,, ,the velocity of the reaction is
proportional to the substrate concentration and the rate of the reaction is said to be
first order

D:-x,, denotes the affinity of enzyme for substrate
Correct Answer:- Option-C