MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following are true for cytoplasmic membrane? |
| A. | hydrophilic barrier |
| B. | hydrophobic barrier |
| C. | site of generation of protonmotive force |
| D. | hydrophobic barrier and site of generation of protonmotive force |
| Answer» E. | |
| 2. |
Which of the following methods can be utilized for removing peripheral proteins of the cytoplasmic membrane? |
| A. | treatment by detergents |
| B. | osmotic shock |
| C. | heat application |
| D. | destruction of the membrane |
| Answer» C. heat application | |
| 3. |
Cysts also have high heat resistance like endospores. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
What helps in the heat resistance of the endospore? |
| A. | calcium-DPA complex |
| B. | water |
| C. | methylene |
| D. | calcium |
| Answer» B. water | |
| 5. |
The nucleoid can be made visible under the light microscope by _________ |
| A. | Methylene blue |
| B. | Iodine |
| C. | Nile blue |
| D. | Feulgen staining |
| Answer» E. | |
| 6. |
Which among the following is associated with the export of exocellular enzymes? |
| A. | central mesosomes |
| B. | peripheral mesosomes |
| C. | thylakoids |
| D. | nucleus |
| Answer» C. thylakoids | |
| 7. |
CYSTS_ALSO_HAVE_HIGH_HEAT_RESISTANCE_LIKE_ENDOSPORES.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Which of the following are true for cytoplasmic membrane?$ |
| A. | hydrophilic barrier |
| B. | hydrophobic barrier |
| C. | site of generation of protonmotive force |
| D. | hydrophobic barrier and site of generation of protonmotive force |
| Answer» E. | |
| 9. |
Which of the following methods can be utilized for removing peripheral proteins of the cytoplasmic membrane?$ |
| A. | treatment by detergents |
| B. | osmotic shock |
| C. | heat application |
| D. | destruction of the membrane |
| Answer» C. heat application | |
| 10. |
What helps in the heat resistance of endospore? |
| A. | calcium-DPA complex |
| B. | water |
| C. | methylene |
| D. | calcium |
| Answer» B. water | |
| 11. |
The nucleoid can be made visible under the light microscope by _________ |
| A. | Methylene blue |
| B. | Iodine |
| C. | Nile blue |
| D. | Feulgen staining |
| Answer» E. | |
| 12. |
Which among the following compound when added to cytoplasmic membrane helps in maintaining the rigidity of cell? |
| A. | lipopolysaccharide |
| B. | hopanoid |
| C. | phosphoglycerides |
| D. | amino acids |
| Answer» C. phosphoglycerides | |
| 13. |
Poly-beta-hydroxybutyrate(PHB) present in aerobic bacteria can serve as? |
| A. | a reserve carbon and energy source |
| B. | a reserve source of phosphate |
| C. | acceptor of oxygen |
| D. | provides buoyancy |
| Answer» B. a reserve source of phosphate | |
| 14. |
Ribosomes of prokaryotes have a sedimentation coefficient of? |
| A. | 90S |
| B. | 80S |
| C. | 50S |
| D. | 70S |
| Answer» E. | |
| 15. |
Which among the following is associated with export of exocellular enzymes? |
| A. | central mesosomes |
| B. | peripheral mesosomes |
| C. | thylakoids |
| D. | nucleus |
| Answer» C. thylakoids | |
| 16. |
Cytoplasmic membrane and the cell material bounded by it plus the outer membrane of cell is known as _________ |
| A. | Protoplast |
| B. | Cytoplast |
| C. | Spheroplast |
| D. | Cell membrane |
| Answer» D. Cell membrane | |
| 17. |
Polyisoprenoid branched-chain lipids, are present in which of the following? |
| A. | Archaebacteria |
| B. | Eubacteria |
| C. | Archaebacteria and Eubacteria |
| D. | Cannot be determined |
| Answer» B. Eubacteria | |