MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biotechnology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which kind of absorption mechanism is showing in the following picture? |
| A. | Endocytosis |
| B. | Passive transport |
| C. | Active transport |
| D. | Facilitated diffusion |
| Answer» C. Active transport | |
| 2. |
A drug can be absorbed by more than one mechanism. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Transfer of an endocytic vesicle from one extracellular compartment to another is known as _____________ |
| A. | Phagocytosis |
| B. | Transcytosis |
| C. | Pinocytosis |
| D. | Endocytosis |
| Answer» C. Pinocytosis | |
| 4. |
Which is the other name of “cell eating”? |
| A. | Transcytosis |
| B. | Phagocytosis |
| C. | Pinocytosis |
| D. | Endocytosis |
| Answer» C. Pinocytosis | |
| 5. |
Which of these absorption methods involves engulfing of the extracellular drug? |
| A. | Endocytosis |
| B. | Passive diffusion |
| C. | Facilitated diffusion |
| D. | Ion-Pair transport |
| Answer» B. Passive diffusion | |
| 6. |
Which types of drugs get absorbed by ion-pair transport? |
| A. | High lipophilicity |
| B. | Oily droplets |
| C. | Affinity for carriers |
| D. | Drugs that ionize at all pH conditions |
| Answer» E. | |
| 7. |
Which drugs are absorbed through pore transport? |
| A. | High lipophilicity |
| B. | Water-soluble drugs of molecular weight less than 100 Dalton |
| C. | Oily droplets |
| D. | Affinity for carriers |
| Answer» C. Oily droplets | |
| 8. |
Which kind of drugs are absorbed through endocytosis? |
| A. | Molecular weight ranging 100-400Dalton |
| B. | Water-soluble drugs |
| C. | Macromolecular drugs or drugs as oily droplets |
| D. | Polar drugs |
| Answer» D. Polar drugs | |
| 9. |
What influences the permeation of drugs in an Ionic or Electrochemical diffusion? |
| A. | Charge on the membrane |
| B. | Charge on the particle |
| C. | Concentration gradient |
| D. | Equilibration of charge |
| Answer» B. Charge on the particle | |
| 10. |
What is the major difference between Facilitated diffusion and Passive diffusion? |
| A. | Carrier-mediated transport |
| B. | Downhill transport |
| C. | Energy is used |
| D. | Inhibition by metabolic poisons |
| Answer» B. Downhill transport | |
| 11. |
What will be the best definition for “carrier”? |
| A. | Nonpolar drugs can be transported through carrier-mediated transport |
| B. | Carrier binds reversibly and no covalently with the molecules |
| C. | It discharges the molecules and gets destroyed itself |
| D. | The carrier is a protein |
| Answer» C. It discharges the molecules and gets destroyed itself | |
| 12. |
What is the driving force of Pore Transport? |
| A. | Hydrostatic pressure |
| B. | Concertation Gradient |
| C. | Electrochemical gradient |
| D. | Charge equilibration |
| Answer» B. Concertation Gradient | |
| 13. |
Which kind of molecules cannot pass through a pore transport? |
| A. | Low Molecular weight molecules |
| B. | Water-soluble drugs |
| C. | Molecules up to 400 Dalton |
| D. | Molecules greater than 400 Dalton |
| Answer» E. | |
| 14. |
What is the driving force for Passive Diffusion? |
| A. | Concentration gradient only |
| B. | Electrochemical gradient only |
| C. | Charge equilibration and concentration gradient |
| D. | Concentration and Electrochemical gradient both |
| Answer» E. | |
| 15. |
Which is the major process of absorption for more than 90% of drugs? |
| A. | Facilitated diffusion |
| B. | Active transport |
| C. | Endocytosis |
| D. | Passive diffusion |
| Answer» E. | |