MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The cofactor in Haber s process is __________ |
| A. | Molybdenum |
| B. | Iron |
| C. | Copper |
| D. | Magnesium |
| Answer» B. Iron | |
| 2. |
In anaerobic respiration, pyruvic acid is converted to _______ |
| A. | Lactate |
| B. | Acetyl CoA |
| C. | PEP |
| D. | Acetate |
| Answer» B. Acetyl CoA | |
| 3. |
The functions of ATP are ___________ |
| A. | ATP acts as the main source of energy in cells |
| B. | Plays a role in transporting solutes and proteins across cell membranes |
| C. | Contribute to the building blocks of DNA |
| D. | All of the mentioned |
| Answer» E. | |
| 4. |
The enzyme that catalyzes the transfer of a proton from a reactant to NAD+ is known as ______ |
| A. | Hydrolase |
| B. | Proton carrier |
| C. | Dehydrogenase |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 5. |
Enzymes that transfer the phosphate group from one protein to another is called _____ |
| A. | Phosphatase |
| B. | Phosphate transferase |
| C. | Kinase |
| D. | Phosphorylase |
| Answer» D. Phosphorylase | |
| 6. |
Feedback inhibition occurs due to _______ |
| A. | Excess of the reactants in the reaction |
| B. | Presence of competitive inhibitor |
| C. | Increase in product to a certain level |
| D. | Presence of irreversible inhibitor |
| Answer» D. Presence of irreversible inhibitor | |
| 7. |
Allosteric enzymes are which _______ |
| A. | Have single subunit |
| B. | Have multiple subunits |
| C. | Follows Michaelis-Menten kinetics |
| D. | Do not affect the binding affinity |
| Answer» C. Follows Michaelis-Menten kinetics | |
| 8. |
Which of the following is a non-competitive inhibitor against protease produced by HIV? |
| A. | Tipranavir |
| B. | Acetylcholinesterase |
| C. | Ritonavir |
| D. | Phenicols |
| Answer» B. Acetylcholinesterase | |
| 9. |
Competitive enzyme inhibitors are ________ |
| A. | Reversible inhibitors |
| B. | Irreversible inhibitors |
| C. | Permanent inhibitors |
| D. | None of the mentioned |
| Answer» B. Irreversible inhibitors | |
| 10. |
Why are enzymes required? |
| A. | Enzymes help to yield more product |
| B. | Enzymes increase the activation energy of the reaction |
| C. | Enzymes decrease the activation energy of the reaction |
| D. | Enzymes maintain the equilibrium in the reaction |
| Answer» D. Enzymes maintain the equilibrium in the reaction | |