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 functional groups are not present in cation exchangers? |
| A. | SO<sub>3</sub><sup> </sup> |
| B. | OPO<sub>3</sub><sup> </sup> |
| C. | NR<sub>3</sub><sup>+</sup> |
| D. | COO<sup> </sup> |
| Answer» D. COO<sup> </sup> | |
| 2. |
Cation exchange resin is used to purify __________ |
| A. | alkaline protease |
| B. | peroxidase |
| C. | alpha amylase |
| D. | cytochrome c |
| Answer» E. | |
| 3. |
Alkaline protease is purified by using ________ |
| A. | DEAE-cellulose |
| B. | Q-sepharose |
| C. | Amberlite CG-50 |
| D. | Sephacryl S-300 |
| Answer» B. Q-sepharose | |
| 4. |
Peroxidases can be purified using ___________ |
| A. | gel filtration |
| B. | cation exchanger |
| C. | anion exchanger |
| D. | affinity chromatography |
| Answer» D. affinity chromatography | |
| 5. |
Which of these is not an anion exchanger? |
| A. | Diethylaminoethyl (DEAE) |
| B. | Quaternary aminoethyl (QAE) |
| C. | Sulphopropyl (SP) |
| D. | Quaternary ammonium (Q) |
| Answer» D. Quaternary ammonium (Q) | |
| 6. |
Cation exchange chromatography retains positively charged cations. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
When pH of enzyme solution is below their isoelectric point, the enzymes will be negatively charged and bind to anion exchangers. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
_____________ retains analyte molecules based on the coulombic interaction. |
| A. | Thin layer chromatography |
| B. | Affinity chromatography |
| C. | Gel filtration |
| D. | Ion exchange chromatography |
| Answer» E. | |