MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Protein Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following amino acid is most commonly phosphorylated in prokaryotes and plants? |
| A. | Alanine |
| B. | Lysine |
| C. | Glycine |
| D. | Histidine |
| Answer» E. | |
| 2. |
Which of the following pathway targets lysosomal enzymes to lysosomes? |
| A. | CMP pathway |
| B. | EMP pathway |
| C. | G6P pathway |
| D. | M6P pathway |
| Answer» E. | |
| 3. |
What is the process in which glutamine is converted to glutamic acid or pyroglutamic acid? |
| A. | Acetylation |
| B. | Methylation |
| C. | Hydroxylation |
| D. | Deamidation |
| Answer» E. | |
| 4. |
Proteolysis is critical to all of the processes listed below except which? |
| A. | Apoptosis |
| B. | Antigen processing |
| C. | Cell signaling |
| D. | Cell growth |
| Answer» E. | |
| 5. |
Which of the following is a method to target proteins to membranes in organelles, vesicles, and plasma membrane? |
| A. | Methylation |
| B. | Glycosylation |
| C. | Phosphorylation |
| D. | Lipidation |
| Answer» E. | |
| 6. |
Which of the following is a donor of the methyl group in methylation of proteins? |
| A. | Methionine |
| B. | Methane |
| C. | O-adenosyl methionine |
| D. | S-adenosyl methionine |
| Answer» E. | |
| 7. |
Which of the following is a well-known mechanism of epigenetic regulation? |
| A. | S-nitrosylation |
| B. | Phosphorylation |
| C. | N-glycosylation |
| D. | Methylation |
| Answer» E. | |
| 8. |
Which of the following post-translational modification aids in converting hydrophobic or lipophilic compounds into hydrophilic compounds? |
| A. | Glycosylation |
| B. | Methylation |
| C. | Ubiquitination |
| D. | Hydroxylation |
| Answer» E. | |
| 9. |
S-adenosyl methionine (SAM) is suggested to be the most used substrate in enzymatic reactions. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
S-nitrosylation is an irreversible reaction. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Ubiquitination plays a crucial role in the degradation of proteins. |
| A. | False |
| B. | True |
| Answer» C. | |
| 12. |
Ubiquitin is 8-kDa polypeptide consisting of how many amino acids? |
| A. | 77 amino acids |
| B. | 67 amino acids |
| C. | 66 amino acids |
| D. | 76 amino acids |
| Answer» E. | |