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. |
How many products are obtained by the hydrolysis of phosphatidylinositol by phospholipase C? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 2. |
Which of the following vitamin is responsible for Ca+2 and phosphate metabolism? |
| A. | A |
| B. | K |
| C. | E |
| D. | D |
| Answer» E. | |
| 3. |
The lipids with potent bio activities derived from isoprenoid precursors are common in __________ |
| A. | Vitamin A, K, ubiquinone and dolichol |
| B. | Vitamin A, D, ubiquinone and dolichol |
| C. | Vitamin A, B, D and K |
| D. | Vitamin A, B, K and dolichol |
| Answer» B. Vitamin A, D, ubiquinone and dolichol | |
| 4. |
An example of glycerophospholipid involved in cell signaling is __________ |
| A. | Cardiolipin |
| B. | Phosphatidic acid |
| C. | Phosphatidylcholine |
| D. | Phosphatidylinositol |
| Answer» E. | |
| 5. |
Phosphorylation of phosphatidylinositol yields __________ |
| A. | Phosphatidylinositol 4, 5-biphosphate |
| B. | Phosphatidylinositol 3, 5-biphosphate |
| C. | Phosphatidylinositol 3, 4-biphosphate |
| D. | Phosphatidylinositol 5, 6-biphosphate |
| Answer» B. Phosphatidylinositol 3, 5-biphosphate | |
| 6. |
HOW_MANY_PRODUCTS_ARE_OBTAINED_BY_THE_HYDROLYSIS_OF_PHOSPHATIDYLINOSITOL_BY_PHOSPHOLIPASE_C??$ |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 7. |
WHICH_OF_THE_FOLLOWING_VITAMIN_IS_RESPONSIBLE_FOR_CA+2_AND_PHOSPHATE_METABOLISM??$ |
| A. | A |
| B. | K |
| C. | E |
| D. | D |
| Answer» E. | |
| 8. |
The lipids with potent bio activities derived from isoprenoid precursors are common i? |
| A. | Vitamin A, K, ubiquinone and dolichol |
| B. | Vitamin A, D, ubiquinone and dolichol |
| C. | Vitamin A, B, D and K |
| D. | Vitamin A, B, K and dolichol |
| Answer» B. Vitamin A, D, ubiquinone and dolichol | |
| 9. |
Which of the following type structure contains all the three glycosphingolipids? |
| A. | B structure |
| B. | A structure |
| C. | O structure |
| D. | AB structure |
| Answer» D. AB structure | |
| 10. |
An example of glycerophospholipid involved in cell signaling is |
| A. | Cardiolipin |
| B. | Phosphatidic acid |
| C. | Phosphatidylcholine |
| D. | Phosphatidylinositol |
| Answer» E. | |
| 11. |
Which of the following hormone is responsible for the activation of phospholipase C? |
| A. | Serotonin |
| B. | Cortisol |
| C. | Vasopressin |
| D. | Adrenaline |
| Answer» D. Adrenaline | |
| 12. |
Which of the following serves as a specific binding site for the proteins involved in membrane fusion during exocytosis? |
| A. | Phosphatidylinositol |
| B. | Phosphatidylinositol 4, 5-biphosphate |
| C. | Phosphatidylinositol 3, 5-biphosphate |
| D. | Phosphatidylinositol 3, 4-biphosphate |
| Answer» C. Phosphatidylinositol 3, 5-biphosphate | |
| 13. |
What leads to the activation of protein kinase C? |
| A. | Release of intracellular Ca<sup>+2</sup> + diacylglycerol |
| B. | Release of intracellular Mg+ + diacylglycerol |
| C. | Release of intracellular Ca<sup>+2</sup> + glycerol |
| D. | Release of intracellular Ca<sup>+2</sup> + triacylglycerol |
| Answer» B. Release of intracellular Mg+ + diacylglycerol | |
| 14. |
Which of the following vitamin is derived from cholesterol? |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 15. |
Phosphorylation of phosphatidylinositol yields |
| A. | Phosphatidylinositol 4, 5-biphosphate |
| B. | Phosphatidylinositol 3, 5-biphosphate |
| C. | Phosphatidylinositol 3, 4-biphosphate |
| D. | Phosphatidylinositol 5, 6-biphosphate |
| Answer» B. Phosphatidylinositol 3, 5-biphosphate | |