MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Why is the productivity of C4 plants better than that of C3 plants? |
| A. | C4 plants show Kranz anatomy |
| B. | C4 plants lack photorespiration |
| C. | C4 plants show high phosphoglycerate formation |
| D. | C4 plants show high phosphoglycolate formation |
| Answer» C. C4 plants show high phosphoglycerate formation | |
| 2. |
When CO2: O2 is approximately 1, RuBisCO has a lower affinity for CO2. True or false? |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Why is carbon dioxide fixation decreased in some C3 plants? |
| A. | Phosphoglycerate formation |
| B. | Unavailability of RuBP |
| C. | Oxygen binds to RuBisCO |
| D. | Oxygen binds to RuBP |
| Answer» D. Oxygen binds to RuBP | |
| 4. |
Complete the reaction. |
| A. | RuBP + CO2 → |
| B. | 3 × 3PGA |
| C. | 2 × 3PGA |
| D. | 2 × 3PGA + RuBisCO |
| E. | 3 × 3PGA + RuBisCO |
| Answer» C. 2 × 3PGA | |
| 5. |
Which of these cannot help us differentiate between C3 and C4 plants? |
| A. | Carbon dioxide acceptor molecule |
| B. | Presence of Kranz anatomy |
| C. | Photorespiration |
| D. | Number of chloroplasts |
| Answer» E. | |