MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
What is the interval of time for which proteins are stored inside the barrel-shaped proteins? |
| A. | 60 seconds |
| B. | 45 seconds |
| C. | 30 seconds |
| D. | 15 seconds |
| Answer» E. | |
| 2. |
What are Hsp60 like proteins known as in the cytosol of a vertebrate cell? |
| A. | Hsp70 |
| B. | from |
| C. | GroEL |
| D. | TCP 1 |
| Answer» E. | |
| 3. |
Which type of chaperones form an “isolated chamber”? |
| A. | Hsp30 |
| B. | Hsp40 |
| C. | Hsp70 |
| D. | Hsp60 |
| Answer» E. | |
| 4. |
Hsp60 like proteins act before the target protein leaves the ribosome. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following phenomenon allows chaperones to recognize a wide variety of misfolded structures? |
| A. | ATP release |
| B. | ATP binding |
| C. | GTP hydrolysis |
| D. | ATP hydrolysis |
| Answer» E. | |
| 6. |
In reality, only one cycle of Hsp protein binding and release helps the target protein to refold. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which of the following event causes the dissociation of Hsp70 molecules from proteins? |
| A. | Rapid ADP binding after ATP release |
| B. | Slow ATP binding after ADP release |
| C. | Slow ADP binding after ATP release |
| D. | Rapid ATP binding after ADP release |
| Answer» E. | |
| 8. |
When the Hsp70 bound to proteins hydrolysis the ATP, it undergoes a conformational change. This change causes Hsp70 molecules to perform which of the following activities? |
| A. | No activity at all |
| B. | Cleave the target |
| C. | Dissociate from target |
| D. | Associate even more tightly to the target |
| Answer» E. | |
| 9. |
The Hsp70 machinery binds to the polypeptide chain after it has left the ribosome. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
To which of the following strings present on the polypeptide chain, does an Hsp70 machinery bind? |
| A. | A string of about six hydrophobic amino acids |
| B. | A string of about seven hydrophilic amino acids |
| C. | A string of about six hydrophilic amino acids |
| D. | A string of about seven hydrophobic amino acids |
| Answer» E. | |
| 11. |
Which of the following chaperones act early in the life of many proteins? |
| A. | Hsp50 |
| B. | Hsp40 |
| C. | Hsp60 |
| D. | Hsp70 |
| Answer» E. | |
| 12. |
To which of the special class of proteins do heat-shock proteins belong? |
| A. | Immunoglobulins |
| B. | Chloroplast proteins |
| C. | Catalytic proteins |
| D. | Chaperones |
| Answer» E. | |
| 13. |
Which of the following class of proteins helps a newly made protein molecule to fold properly? |
| A. | Mitochondrial proteins |
| B. | Ribosomal proteins |
| C. | Immunoglobulins |
| D. | Chaperones |
| Answer» E. | |
| 14. |
Which of the following amino acids are likely to be present on the surface of a globular protein? |
| A. | Both hydrophobic and hydrophilic |
| B. | Either hydrophobic or hydrophilic |
| C. | Hydrophobic |
| D. | Hydrophilic |
| Answer» E. | |
| 15. |
Which amino acids are buried deep inside a protein structure? |
| A. | Either hydrophobic or hydrophilic |
| B. | Both hydrophobic and hydrophilic |
| C. | Hydrophilic |
| D. | Hydrophobic |
| Answer» E. | |