MEDIUM
Earn 100

Following are the steps of the catalytic cycle of enzyme action:-
i. Enzyme releases the product and is ready to bind to another molecule of the substrate.
ii. Binding of the substrate induces the enzyme to alter its shape, fitting more tightly around the substrate.
iii. The active site of the enzyme, now in close proximity of the substrate, breaks the chemical bonds of the substrate.
iv. The substrate bind to the active site of the enzyme.
Choose the correct sequence of the steps from the following.
i. Enzyme releases the product and is ready to bind to another molecule of the substrate.
ii. Binding of the substrate induces the enzyme to alter its shape, fitting more tightly around the substrate.
iii. The active site of the enzyme, now in close proximity of the substrate, breaks the chemical bonds of the substrate.
iv. The substrate bind to the active site of the enzyme.
(a)(i) (ii) (iii) (iv)
(b)(iv) (ii) (iii) (i)
(c)(iv) (iii) (i) (ii)
(d)(iv) (ii) (i) (iii)

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Important Questions on Enzymes
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A) Catalytic RNA
B) Non-Protein enzymes
C) Nucleic acids
D) Group of ribosomes

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Identify the labelled parts in the concept of activation energy shown in the below diagram?

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Study the following
(I) | value | Affinity of the enzyme | Inverse measure enzyme affinity |
(II) | Hydrolases | bonds | Linking compounds |
(III) | Transferases | Transfer of a group | Inhibitor of reaction |
(IV) | Emil Fisher | Lock and key hypothesis | Formation of ES complex |
The correct combinations are

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Match the following?
Enzymes | Functions | ||
(a) | Lyases | (i) | Oxido reduction |
(b) | Isomerases | (ii) | Link compounds |
(c) | Dehydrogenases | (iii) | Transfer of group |
(d) | Ligases | (iv) | Interconversion |
(v) | Removal of groups |

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