MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Technology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not added as a preservative for liquid enzyme preparation? |
| A. | Antibiotic |
| B. | Benzoic acid esters |
| C. | Thiols |
| D. | Carboxymethylcellulose |
| Answer» E. | |
| 2. |
Which of these is not added as a preservative for solid enzyme preparation? |
| A. | Thiols |
| B. | Starch |
| C. | Lactose |
| D. | Carboxymethylcellulose |
| Answer» B. Starch | |
| 3. |
Which of these is not a hydrophilic polymer used to stabilize enzymes? |
| A. | Polyvinyl alcohol |
| B. | Polyvinylpyrrolidone |
| C. | Mannitol |
| D. | Hydroxypropylcelluloses |
| Answer» D. Hydroxypropylcelluloses | |
| 4. |
Which of these is used for enzyme stabilization? |
| A. | Potassium hydrogen phosphate |
| B. | Sodium thiosulphate |
| C. | Calcium chloride |
| D. | EDTA |
| Answer» B. Sodium thiosulphate | |
| 5. |
Which of the following approach is not a key to maintaining enzyme activity? |
| A. | Use of additives |
| B. | Controlled used of covalent modification |
| C. | Accurate, precise, reproducible, linear and free from electrical noise |
| D. | Enzyme immobilization |
| Answer» D. Enzyme immobilization | |
| 6. |
____________ is an art and is a method used to stabilize enzyme preparations. |
| A. | Chromatography |
| B. | Centrifugation |
| C. | Formulation |
| D. | Filtration |
| Answer» D. Filtration | |
| 7. |
Which of these is of primary importance to the enzyme producer and customer? |
| A. | pH |
| B. | Temperature |
| C. | Denaturation time |
| D. | Activity |
| Answer» E. | |