MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Enzyme Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not a strategy to produce synzymes? |
| A. | Monoclonal antibodies covalently attached to the phosphonate esters which can act as esterases |
| B. | Molecular imprinting of polymers |
| C. | Primary amines alkylated with 1-iodododecane and 4(5)-chloromethylimidazole |
| D. | Synthesis of cyclodextrins from starch by the cyclomaltodextrin glucanotransferase from Bacillus macerans |
| Answer» E. | |
| 2. |
Which of the following synzyme has 27% of the activity of a-chymotrypsin against 4-nitrophenyl esters? |
| A. | Primary amines alkylated with 1-iodododecane and 4(5)-chloromethylimidazole |
| B. | Myoglobin achieved by attaching (Ru(NH<sub>3</sub>)<sub>5</sub>)<sup>3+</sup> to three surface histidine residues |
| C. | C-6 hydroxyl group of -cyclodextrins was covalently derivatized by an activated pyridoxal coenzyme |
| D. | Polyglutamic acid acts as an esterase in much the same fashion as the acid proteases for the hydrolysis of 4-nitrophenyl acetate |
| Answer» B. Myoglobin achieved by attaching (Ru(NH<sub>3</sub>)<sub>5</sub>)<sup>3+</sup> to three surface histidine residues | |
| 3. |
-cyclodextrins was not as active as natural transaminases. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Cyclodextrins are synthesized from starch using __________ |
| A. | yeast |
| B. | cyclomaltodextrin glucan transferase |
| C. | B. acidopullulyticus |
| D. | B. Licheniformis |
| Answer» C. B. acidopullulyticus | |
| 5. |
Which of the following do not show synzymic properties? |
| A. | Papain |
| B. | Myoglobin |
| C. | Polyglutamic acid |
| D. | Cyclodextrins |
| Answer» B. Myoglobin | |
| 6. |
Derivative of myoglobin acts as an effective natural ascorbate oxidase. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of the following is not true for synzymes? |
| A. | They are referred to as artificial enzymes |
| B. | They possess two structural entities which are a substrate binding site and a catalytically effective site |
| C. | They do not obey the Miachelis-Menten kinetics |
| D. | Producing catalytic site is difficult |
| Answer» D. Producing catalytic site is difficult | |
| 8. |
Synthetic polymers or oligomers with enzyme-like activities possess two structural entities, a substrate-binding site and a catalytically effective site are referred to as ___________ |
| A. | co-factors |
| B. | co-enzymes |
| C. | biosensors |
| D. | synzymes |
| Answer» E. | |