EASY
Earn 100

Mention the functions of dehydrogenase.
Important Questions on Biomolecules
HARD
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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HARD
Find out where transketolase and epimerase reactions occur among the following:
i) Fructose bisphosphate
ii) Sedoheptulose- Phosphate Xylulose Ribose Phosphate
iii) Ribose Phosphate Ribulose Phosphate
iv) Xylulose Phosphate Ribulose Phosphate
v) Fructose Phosphate XylulosePhosphate Erythrose Phosphate
The correct combination is

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Group I | Group II |
P. Hydrolase | i. Inter-conversion of optical isomers |
Q. Lyase | ii. Oxidation and reduction of two substrates |
R. Isomerase | iii. Joining of two compounds |
S. Ligase | iv. Removal of a chemical group from one substrate |
v. Transfer of a chemical group from one substrate to another |

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Match the enzymes in Column I with their respective biochemical reactions in column II. Choose the correct combination from below
Column I | Column II |
(P) Transaminases | (i) Removal of a phosphoryl group from a specific amino acid |
(Q) Protein Kinases | (ii) Removal of α-amino group from a specific amino acid |
(R) Protein Phosphatases | (iii) Addition of phosphoryl group to a specific amino acid |
(S) Dehydrogenases | (iv) Interconversion of optical isomers |
(v) Oxidation and reduction of substrates |

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HARD
The following graph shows the concentration of substrate on enzyme activity:
What does the -axis represent?

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