MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following converts PGH2 to thromboxane A2? |
| A. | Enoyl-ACP reductase |
| B. | β-ketoacyl ACP reductase |
| C. | Cyclooxygenase |
| D. | Thromboxane synthase |
| Answer» E. | |
| 2. |
Which of the following reduces double bond, forming saturated acyl ACP? |
| A. | β-ketoacyl ACP reductase |
| B. | β-hydroxyacyl ACP dehydratase |
| C. | Enoyl ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» D. Malonyl co-A ACP transferase | |
| 3. |
Which of the following removes H2O from β-hydroxyl ACP, creating double bond? |
| A. | β-ketoacyl ACP reductase |
| B. | β-hydroxyacyl ACP dehydratase |
| C. | Enoyl ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» C. Enoyl ACP reductase | |
| 4. |
Which of the following reduces β-keto group to β-hydroxyl group? |
| A. | β-ketoacyl ACP reductase |
| B. | β-hydroxyacyl ACP dehydratase |
| C. | Enoyl ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» B. β-hydroxyacyl ACP dehydratase | |
| 5. |
The prosthetic group of acyl carrier protein is ___________ |
| A. | 4’-phosphopantetheine |
| B. | 3’-phosphopantetheine |
| C. | 2’-phosphopantetheine |
| D. | 1’-phosphopantetheine |
| Answer» B. 3’-phosphopantetheine | |
| 6. |
WHICH_OF_THE_FOLLOWING_REDUCES_DOUBLE_BOND,_FORMING_SATURATED_ACYL_ACP??$ |
| A. | β-ketoacyl ACP reductase |
| B. | β-hydroxyacyl ACP dehydratase |
| C. | Enoyl ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» D. Malonyl co-A ACP transferase | |
| 7. |
Which of the following converts PGH2 to thromboxane A2? |
| A. | Enoyl-ACP reductase |
| B. | Thromboxane axocine |
| C. | Cyclooxygenase |
| D. | Thromboxane synthase |
| Answer» E. | |
| 8. |
Which of the following removes H2O from β-hydroxyl ACP, creating double bond?# |
| A. | β-ketoacyl ACP reductase |
| B. | β-hydroxyacyl ACP dehydratase |
| C. | Enoyl ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» C. Enoyl ACP reductase | |
| 9. |
Which of the following reduces β-keto group to β-hydroxyl group?$ |
| A. | β-ketoacyl ACP reductase |
| B. | β-hydroxyacyl ACP dehydratase |
| C. | Enoyl ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» B. ‚âà√≠‚Äö√¢¬ß-hydroxyacyl ACP dehydratase | |
| 10. |
Which of the following transfers malonyl group from co-A to ACP? |
| A. | Acyl carrier protein |
| B. | Acetyl co-A ACP transacetylase |
| C. | Enoyl-ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» E. | |
| 11. |
Which of the following condenses acyl and malonyl groups? |
| A. | Acyl carrier protein |
| B. | Acetyl co-A ACP transacetylase |
| C. | β-ketoacyl ACP synthase |
| D. | Malonyl co-A ACP transferase |
| Answer» D. Malonyl co-A ACP transferase | |
| 12. |
Which of the following transfers acyl group from co-A to cys residue of KS? |
| A. | Acyl carrier protein |
| B. | Acetyl co-A ACP transacetylase |
| C. | Enoyl-ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» C. Enoyl-ACP reductase | |
| 13. |
Which of the following carries acyl groups in thio-ester linkage? |
| A. | Acyl carrier protein |
| B. | Acetyl co-A ACP transacetylase |
| C. | Enoyl-ACP reductase |
| D. | Malonyl co-A ACP transferase |
| Answer» B. Acetyl co-A ACP transacetylase | |
| 14. |
The prosthetic group of acyl carrier protein is |
| A. | 4’-phosphopantetheine |
| B. | 3’-phosphopantetheine |
| C. | 2’-phosphopantetheine |
| D. | 1’-phosphopantetheine |
| Answer» B. 3‚Äö√Ñ√∂‚àö√ë‚àö¬•-phosphopantetheine | |
| 15. |
Conversion of acetyl co-A to malonyl co-A requires which of the following? |
| A. | NADPH |
| B. | H<sub>2</sub>O |
| C. | Folic acid |
| D. | Biotin |
| Answer» E. | |