MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry Tricky knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following does not affect the stability of an -helix? |
| A. | Electrostatic repulsion |
| B. | Bulkiness |
| C. | Interaction between R groups spaced three residues apart |
| D. | Occurrence of alanine and glycine residues |
| Answer» E. | |
| 2. |
In 3 structure of proteins, folding and shaping is done by ____________ |
| A. | Hydrophobic interactions |
| B. | Polar interactions |
| C. | Hydrogen bonding |
| D. | None of the mentioned |
| Answer» B. Polar interactions | |
| 3. |
Tertiary conformation of proteins is maintained by 3 types of bonds namely ionic, hydrogen and ____________ |
| A. | Sulfide |
| B. | Disulfide |
| C. | Covalent |
| D. | Peptide |
| Answer» C. Covalent | |
| 4. |
What does it mean when we say that water acts as a heat buffer ? |
| A. | It keeps the temperature of an organism relatively constant as the temperature of the surroundings fluctuates |
| B. | It increases the temperature of an organism as the temperature of the surroundings increases |
| C. | It decreases the temperature of an organism as the temperature of the surroundings increases |
| D. | It increases the temperature of an organism as the temperature of the surroundings decreases |
| Answer» B. It increases the temperature of an organism as the temperature of the surroundings increases | |
| 5. |
1M NaCl and 1M HCl are present in an aqueous solution. What is the solution? |
| A. | Not a buffer solution with pH < 7 |
| B. | Not a buffer solution with pH > 7 |
| C. | A buffer solution with pH < 7 |
| D. | A buffer solution with pH > 7 |
| Answer» B. Not a buffer solution with pH > 7 | |
| 6. |
If pH of solution of NaOH is 12.0 the pH of H2SO4 solution of same molarity will be ____________ |
| A. | 2.0 |
| B. | 12.0 |
| C. | 1.7 |
| D. | 10.0387 |
| Answer» D. 10.0387 | |