MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
During salt stress condition in Arabidopsis, which of the following antiport proteins are used? |
| A. | AvPI and AtNHX |
| B. | AvPI and AtDBF |
| C. | AvPI and AvPII |
| D. | None of the mentioned |
| Answer» B. AvPI and AtDBF | |
| 2. |
Halobacterium salinarium uses the following for the active transport of ions to induce purple colour. |
| A. | Light energy |
| B. | ATP |
| C. | Voltage |
| D. | Chemical energy |
| Answer» B. ATP | |
| 3. |
Symport and Antiport is the classification of ____________ |
| A. | Primary active transport |
| B. | Secondary active transport |
| C. | Primary passive transport |
| D. | Secondary passive transport |
| Answer» C. Primary passive transport | |
| 4. |
The ratio of Na+ and K+ transported by Na+/K+-ATPase pump is ___________ |
| A. | 1:1 |
| B. | 2:1 |
| C. | 2:3 |
| D. | 3:2 |
| Answer» E. | |
| 5. |
GLUT1 is an example of ______________ |
| A. | Channel protein |
| B. | Facilitative transporter |
| C. | Active transporter |
| D. | Lipid-anchored protein |
| Answer» C. Active transporter | |
| 6. |
Facilitative transporter ___________ |
| A. | Helps in facilitated diffusion |
| B. | Changes conformation |
| C. | Transports molecules passively |
| D. | Changes conformation, transports molecules and facilitated diffusion |
| Answer» E. | |
| 7. |
The ion most abundant in cells and most permeable to cell membrane is ____________ |
| A. | K<sup>+</sup> |
| B. | Ca<sup>2+</sup> |
| C. | Na<sup>+</sup> |
| D. | H<sup>+</sup> |
| Answer» B. Ca<sup>2+</sup> | |
| 8. |
How many H+ ions are transported by the vacuole H+-ATPase pump and the vacuole H+-phosphatase pump per hydrolysis of ATP and pyrophosphate respectively? |
| A. | 1, 1 |
| B. | 1, 2 |
| C. | 2, 1 |
| D. | 2, 2 |
| Answer» D. 2, 2 | |
| 9. |
Which of the following channels depend on forces such as stretch tension applied on the membrane? |
| A. | Voltage-gated channels |
| B. | Mechano-gated channels |
| C. | Ligand-gated channels |
| D. | Tension-gated channels |
| Answer» C. Ligand-gated channels | |
| 10. |
Plasmolysis occurs in __________ |
| A. | Hypertonic solution |
| B. | Hypotonic solution |
| C. | Both hypotonic and hypertonic solution |
| D. | Isotonic solution |
| Answer» B. Hypotonic solution | |
| 11. |
The transport of water molecules from a solution to the cell cytoplasm occurs in _________ |
| A. | Hypertonic solution |
| B. | Hypotonic solution |
| C. | Isotonic solution |
| D. | All of the mentioned |
| Answer» C. Isotonic solution | |