MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Pharmaceutical Biotechnology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the name of the method used to attach enzymes to stationary solids by weak physical forces? |
| A. | Absorption |
| B. | Cross linking |
| C. | Adsorption |
| D. | Capillary action |
| Answer» D. Capillary action | |
| 2. |
Which of the following are natural mineral polymers? |
| A. | Cellulose |
| B. | Dextran |
| C. | Agar |
| D. | Silica |
| Answer» E. | |
| 3. |
Which of the physical property of the matrices particularly determine the surface area and binding capacity? |
| A. | Swelling behaviour |
| B. | Mechanical strength |
| C. | Compression behaviour |
| D. | Pore parameters |
| Answer» E. | |
| 4. |
In physical adsorption the enzymes are attached to the matrix through hydrogen bonding, van der Waals forces, or hydrophobic interactions; whereas in ionic bonding, the enzymes are bound through? |
| A. | Hydrophilic linkage |
| B. | Di-sulphide bonding |
| C. | Salt linkages |
| D. | Cross-linking |
| Answer» D. Cross-linking | |
| 5. |
What is the method name that is based on the occlusion of an enzyme within a polymeric network that allows the substrate and products to pass through but retains the enzyme? |
| A. | The entrapment method |
| B. | Covalent coupling |
| C. | Microencapsulation |
| D. | Hollow fibre |
| Answer» B. Covalent coupling | |
| 6. |
The most common procedures of irreversible enzyme immobilization are covalent coupling, entrapment or micro-encapsulation and ____________ |
| A. | Hydrophilic linkage |
| B. | Di-sulphide bonding |
| C. | Covalent bonding |
| D. | Cross-linking |
| Answer» E. | |
| 7. |
Who reported the first industrial use of immobilized enzymes in 1967? |
| A. | Robert Hook |
| B. | Chibata and co-workers |
| C. | James Watson |
| D. | Kary Mullis |
| Answer» C. James Watson | |
| 8. |
What term is given to enzymes physically confined or localized in a certain defined region of space with retention of their catalytic activities, and which can be used repeatedly and continuous? |
| A. | Localized enzymes |
| B. | Localisation of enzymes |
| C. | Immobilized enzymes |
| D. | Catalysed enzymes |
| Answer» D. Catalysed enzymes | |