Question27:-Which of the following statement(s) is/are correct about allosteric
regulation?

(i) | Allosteric effectors can change either the «,. or the of the reaction or the Vaux of
the reaction

(ii) Homotropic interactions are always positive

(111) Most allosteric enzymes bind the allosteric effector with no effect on binding
other ligands

A:-Only (i) and (ii)

B:-Only (ii) and (iii)

C:-Only (i) and (iii)

D:-All of the above (i, ii and iii)

Correct Answer:- Option-A
Question28:-All are used as immobilized enzymes except

A:-Urease

B:-Horse raddish peroxidase

C:-Trypsin

D:-Leucine Amino Peptidase

Correct Answer:-Question Cancelled

Question29:-Which of the following statements is/are correct?

(i) The protein part of the enzyme is the prosthetic group

(ii) The prosthetic group of the enzyme is called the co enzyme
(iii) Co enzyme is a low molecular weight organic substance

A:-(i) and (ii)

B:-(ii) and (iii)

C:-(i) and (iii)

D:-All of the above (i), (ii) and (iii)

Correct Answer:- Option-B
Question30:-An example of a lyase is

A:-Acetyl CoA carboxylase

B:-Trypsin

C:-Glycogen synthase

D:-Aldolase

Correct Answer:- Option-D
Question31:-All are true regarding enzyme inhibition except

A:-Reversible inhibition of an enzyme may be competitive uncompetitive or
mixed

B:-Irreversible inhibitors bind permanently to the active site by forming a
covalent bond or a very stable non covalent interaction

C:-Transition State analogues are molecules that bind to an enzyme tightly at a
site distinct from the active site