MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
In secondary structure, the interactions of the R groups give a protein its specific three-dimensional tertiary structure. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following of a protein molecule determines the strength of van der Waals force? |
| A. | The molecular weight of the protein |
| B. | PI of the protein |
| C. | Number of amino acids present |
| D. | The surface area of the molecule |
| Answer» E. | |
| 3. |
What is the approximate strength of the interaction between atoms in a covalent bond? |
| A. | 500 kJ/mol |
| B. | 150 kJ/mol |
| C. | 100 kJ/mol |
| D. | 250 kJ/mol |
| Answer» E. | |
| 4. |
What is the name of the links between sulfur atoms of two cysteine amino acids? |
| A. | Disulfide bond |
| B. | H bond |
| C. | Hydrophobic interaction |
| D. | Electrostatic bond |
| Answer» B. H bond | |
| 5. |
Which of the bonds are between the polar side groups of amino acids? |
| A. | Disulfide bond |
| B. | Hydrogen bond |
| C. | Hydrophobic interaction |
| D. | Electrostatic bond |
| Answer» C. Hydrophobic interaction | |
| 6. |
What is the name of attractions between polar or ionized R groups and water on the surface of the tertiary structure? |
| A. | Disulfide bond |
| B. | H bond |
| C. | Hydrophilic interaction |
| D. | Electrostatic bond |
| Answer» D. Electrostatic bond | |
| 7. |
Hydrophobic interactions are attractive interactions, resulting from the inability of water to form hydrogen bonds with certain side chains. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
What is the strength of salt bridges? |
| A. | 10-15 kcal/mol |
| B. | 20-25 kcal/mol |
| C. | 17-20 kcal/mol |
| D. | 4-7 kcal/mol |
| Answer» E. | |
| 9. |
Salt bridges are which kind of bonds? |
| A. | Disulfide bond |
| B. | H bond |
| C. | Hydrophobic interaction |
| D. | Electrostatic bond |
| Answer» E. | |
| 10. |
H bond doesn t allow structural change. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Which bond is weak and allow to be broken and reformed easily? |
| A. | Disulfide bond |
| B. | H bond |
| C. | Hydrophobic interaction |
| D. | Electrostatic bond |
| Answer» C. Hydrophobic interaction | |
| 12. |
What is the disulfide bond? |
| A. | The ionic bond between S-S |
| B. | Vander Waals interaction between two S atoms |
| C. | The covalent bond between sulfur atoms on two cysteine amino acids |
| D. | The covalent bond between any two sulfur atoms |
| Answer» D. The covalent bond between any two sulfur atoms | |
| 13. |
Salt Bridges is one of the Interactions stabilizing protein structure. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
One of the Main Forces that stabilize covalent structures in proteins is the interaction between the protein and the ____________ |
| A. | Other protein |
| B. | Cells around |
| C. | Solvent |
| D. | Cell debris around |
| Answer» D. Cell debris around | |
| 15. |
Interactions between atoms within the protein chain are one of the main forces that stabilize covalent structures in Proteins. |
| A. | True |
| B. | False |
| Answer» B. False | |