MCQOPTIONS
Saved Bookmarks
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. |
The inactivation of photosynthesis is known as photo inhibition. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following protein is disrupted due to the disorder in photophosphorylation reaction? |
| A. | C1 |
| B. | D1 |
| C. | H1 |
| D. | K1 |
| Answer» C. H1 | |
| 3. |
In the conversion of ADP to ATP by the enzyme ATP synthase, which reaction helps in the movement of H+ across the membranes? |
| A. | Redox reaction |
| B. | Oxidation reaction |
| C. | Chemiosmosis |
| D. | Redox reaction |
| Answer» D. Redox reaction | |
| 4. |
Which of the following organisms lack photophosphorylation? |
| A. | Algae |
| B. | Cyanobacteria |
| C. | Plants |
| D. | Yeast |
| Answer» E. | |
| 5. |
Which of the following organisms contain Chlorosome? |
| A. | Green Sulphur bacteria |
| B. | Blue green bacteria |
| C. | Purple bacteria |
| D. | Plant cells |
| Answer» B. Blue green bacteria | |
| 6. |
How many micromoles of CO2 is fixed per milligram of chloroplast in an hour? |
| A. | 2.5 |
| B. | 3 |
| C. | 3.5 |
| D. | 4 |
| Answer» D. 4 | |
| 7. |
Which enzyme helps in the flow of protons from the thylakoid to the stroma? |
| A. | ADP synthase |
| B. | ATP synthase |
| C. | ADP hydrolase |
| D. | ADP hydrolase |
| Answer» C. ADP hydrolase | |
| 8. |
The site of photophosphorylation is __________ |
| A. | Chloroplast |
| B. | Mitochondria |
| C. | Endoplasmic reticulum |
| D. | Nucleus |
| Answer» B. Mitochondria | |
| 9. |
Cyclic photophosphorylation has both photosystem I and II. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Who discovered photophosphorylation? |
| A. | D David |
| B. | D Benjamin |
| C. | D Arnon |
| D. | D Robert |
| Answer» D. D Robert | |
| 11. |
What is photophosphorylation? |
| A. | Addition of phosphate without light |
| B. | Removal of phosphate without light |
| C. | Addition of phosphate with light |
| D. | Removal of phosphate with light |
| Answer» D. Removal of phosphate with light | |