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. |
In which type of chromatography lipids are carried up a silica gel coated pate by a rising solvent front, less polar travels farther than the more polar ones? |
| A. | Absorption chromatography |
| B. | Thin layer chromatography |
| C. | Gas-liquid chromatography |
| D. | HPLC |
| Answer» C. Gas-liquid chromatography | |
| 2. |
The dye used in TLC for detecting separated lipids by spraying the plate is __________ |
| A. | Mordant |
| B. | Alizarin |
| C. | Rhodamine |
| D. | Fuchsin |
| Answer» D. Fuchsin | |
| 3. |
A mixture of fatty acyl methyl esters are separated based on __________ |
| A. | Charge |
| B. | Chain length and degree of saturation |
| C. | Molecular weight |
| D. | Ionic size |
| Answer» C. Molecular weight | |
| 4. |
For the determination of fatty acid composition, transesterification is done in a warm aqueous solution of __________ |
| A. | KCl+methanol |
| B. | KOH+methanol |
| C. | NaOH+methanol |
| D. | H2O+methanol |
| Answer» D. H2O+methanol | |
| 5. |
Phosphatidylinositol, phosphatidylglycerol and phosphatidylserine are easily separated by __________ |
| A. | Absorption chromatography |
| B. | TLC |
| C. | HPLC |
| D. | Gas-liquid chromatography |
| Answer» C. HPLC | |
| 6. |
IN_WHICH_TYPE_OF_CHROMATOGRAPHY_LIPIDS_ARE_CARRIED_UP_A_SILICA_GEL_COATED_PATE_BY_A_RISING_SOLVENT_FRONT,_LESS_POLAR_TRAVELS_FARTHER_THAN_THE_MORE_POLAR_ONES??$ |
| A. | Absorption chromatography |
| B. | Thin layer chromatography |
| C. | Gas-liquid chromatography |
| D. | HPLC |
| Answer» C. Gas-liquid chromatography | |
| 7. |
Which of the following is not a phospholipase? |
| A. | A |
| B. | C |
| C. | D |
| D. | K |
| Answer» E. | |
| 8. |
The dye used in TLC for detecting separated lipids by spraying the plate i? |
| A. | Mordant |
| B. | Alizarin |
| C. | Rhodamine |
| D. | Fuchsin |
| Answer» D. Fuchsin | |
| 9. |
Which technique is preferred in the separation of fatty acyl methyl esters from a mixture? |
| A. | Gas-liquid chromatography |
| B. | Absorption chromatography |
| C. | TLC |
| D. | Centrifugation |
| Answer» B. Absorption chromatography | |
| 10. |
A mixture of fatty acyl methyl esters are separated based on |
| A. | Charge |
| B. | Chain length and degree of saturation |
| C. | Molecular weight |
| D. | Ionic size |
| Answer» C. Molecular weight | |
| 11. |
For the determination of fatty acid composition, transesterification is done in a warm aqueous solution of |
| A. | KCl+methanol |
| B. | KOH+methanol |
| C. | NaOH+methanol |
| D. | H2O+methanol |
| Answer» D. H2O+methanol | |
| 12. |
Phosphatidylinositol, phosphatidylglycerol and phosphatidylserine are easily separated by |
| A. | Absorption chromatography |
| B. | TLC |
| C. | HPLC |
| D. | Gas-liquid chromatography |
| Answer» C. HPLC | |
| 13. |
In which type of chromatography, solvents of increasing polarity are passed through a column of silica gel? |
| A. | High performance liquid chromatography |
| B. | Thin layer chromatography |
| C. | Adsorption chromatography |
| D. | Gas-liquid chromatography |
| Answer» D. Gas-liquid chromatography | |
| 14. |
Which would move faster in thin layer chromatography? |
| A. | Beeswax |
| B. | Phosphatidylinositol |
| C. | Cholesterol |
| D. | Steroid |
| Answer» B. Phosphatidylinositol | |
| 15. |
Which of the following is false about lipids? |
| A. | They are either strongly hydrophobic or amphipathic |
| B. | They are more soluble in water |
| C. | Extraction of lipids from tissues require organic solvents |
| D. | They are insoluble in water |
| Answer» C. Extraction of lipids from tissues require organic solvents | |