MCQOPTIONS
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MCQOPTIONS
This section includes 7 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 true of feedback allosteric inhibition in multienzyme system? |
| A. | First enzyme of the sequence is regulatory allosteric enzyme |
| B. | The enzyme is inhibited by the end product of the multienzyme system |
| C. | Allosteric enzymes obey Miachelis-Menten kinetics |
| D. | The whole enzyme system slows down to bring the rate of production of its end product back into balance when the cell needs it |
| Answer» D. The whole enzyme system slows down to bring the rate of production of its end product back into balance when the cell needs it | |
| 2. |
Which of the enzyme ATP does not act as an inhibitor? |
| A. | Isocitrate dehydrogenase |
| B. | Phosphofructokinase-1 |
| C. | Glycogen phosphorylase |
| D. | Fructose-1,6- bisphosphatase |
| Answer» E. | |
| 3. |
Which of the following is not an inhibitor of pyruvate dehydrogenase in conversion pyruvate to acetyl CoA? |
| A. | Citrate |
| B. | ATP |
| C. | NADH |
| D. | Acetyl CoA |
| Answer» B. ATP | |
| 4. |
________ is referred to as effectors which increase the enzyme activity. |
| A. | Positive effectors |
| B. | Modifier |
| C. | Negative effectors |
| D. | Inhibitor |
| Answer» B. Modifier | |
| 5. |
Effectors that inhibit enzyme activity are termed as ____________ |
| A. | positive effectors |
| B. | modulators |
| C. | negative effectors |
| D. | inhibitor |
| Answer» D. inhibitor | |
| 6. |
The enzymes having allosteric sites, other than catalytic site which is used for binding for regulatory metabolites is referred to as _________ |
| A. | isoenzyme |
| B. | biosensor |
| C. | allosteric enzymes |
| D. | effectors |
| Answer» D. effectors | |
| 7. |
Which of the following is not true for allosteric enzyme? |
| A. | Greek word allo means other and steros means site |
| B. | Enzymes having other site |
| C. | Regulatory metabolites are called effector or modulator or modifier |
| D. | Each of two or more enzymes with identical function but different structure |
| Answer» E. | |