MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
What is the process of synthesis of glucose by the liver is referred to as? |
| A. | gluconeogenesis |
| B. | neogenesis |
| C. | glycolysis |
| D. | saccharification |
| Answer» B. neogenesis | |
| 2. |
Feedback inhibition is cell s mechanism to _____________ the process of anabolism. |
| A. | activate |
| B. | inhibit |
| C. | increase |
| D. | decrease |
| Answer» C. increase | |
| 3. |
Allosteric site is same as enzyme s active site. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Induced fit in an enzyme refers to ____________________ |
| A. | error |
| B. | loop |
| C. | conformational change |
| D. | torsional change |
| Answer» D. torsional change | |
| 5. |
Chymotrypsin is a ___________ |
| A. | starch |
| B. | polymer |
| C. | buffer |
| D. | enzyme |
| Answer» E. | |
| 6. |
What will happen if heat is applied to an enzyme mediated reaction? |
| A. | Rate will increase |
| B. | pH will increase |
| C. | pH will decrease |
| D. | Denaturation of enzyme |
| Answer» B. pH will increase | |
| 7. |
Enzymes have no effect on which of the following, in a chemical reaction? |
| A. | activation energy |
| B. | speed |
| C. | thermodynamics |
| D. | completion time |
| Answer» D. completion time | |
| 8. |
The non-protein constituents of conjugated proteins are called ___________ |
| A. | enzymes |
| B. | cofactors |
| C. | amino acids |
| D. | nucleosides |
| Answer» C. amino acids | |
| 9. |
Protein catalysts are called __________ and RNA catalysts are called _____________ |
| A. | enzymes, ribozymes |
| B. | ribozymes, enzymes |
| C. | enzymes, ribosomes |
| D. | ribosomes, enzymes |
| Answer» B. ribozymes, enzymes | |
| 10. |
Which of the following are responsible virtually for every reaction that takes place inside a cell? |
| A. | Carbohydrates |
| B. | ADP |
| C. | Nucleic acids |
| D. | Enzymes |
| Answer» B. ADP | |
| 11. |
Cellular metabolism is a non-equilibrium metabolism. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Hydrolysis of ATP is which type of reaction? |
| A. | Physical |
| B. | Mechanical |
| C. | Endergonic |
| D. | Exergonic |
| Answer» E. | |
| 13. |
Exergonic processes are thermodynamically unfavorable. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
According to laws of thermodynamics, the energy of the Universe is _________ whereas the entropy ______________ |
| A. | constant, increases |
| B. | constant, decreases |
| C. | increases, remains constant |
| D. | decreases, remains constant |
| Answer» B. constant, decreases | |
| 15. |
Reactions that lose heat are termed as _____________ |
| A. | endothermic |
| B. | exothermic |
| C. | chemical |
| D. | physical |
| Answer» C. chemical | |