MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In which of these cells does the Calvin pathway occur in C4 plants? |
| A. | Mesophyll cells |
| B. | Bundle sheath cells |
| C. | Epidermal cells |
| D. | Sieve cells |
| Answer» C. Epidermal cells | |
| 2. |
In which of these cells does the Calvin pathway occur in C3 plants? |
| A. | Mesophyll cells |
| B. | Bundle sheath cells |
| C. | Epidermal cells |
| D. | Sieve cells |
| Answer» B. Bundle sheath cells | |
| 3. |
Which of these is common to C3 and C4 plants? |
| A. | OAA |
| B. | PGA |
| C. | Calvin cycle |
| D. | Photorespiration |
| Answer» D. Photorespiration | |
| 4. |
Which enzyme is a major component of the bundle sheath cells? |
| A. | PEPcase |
| B. | PEP |
| C. | RuBisCO |
| D. | PEP carboxylase |
| Answer» D. PEP carboxylase | |
| 5. |
Which of these is not a 4-carbon compound? |
| A. | Aspartic acid |
| B. | OAA |
| C. | Malic acid |
| D. | PGA |
| Answer» E. | |
| 6. |
Plants adapted to dry tropical regions use the C4 pathway. True or false? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of these is the C4 acid? |
| A. | PEP |
| B. | PGA |
| C. | OAA |
| D. | RuBisCO |
| Answer» D. RuBisCO | |
| 8. |
Which of these are not present in mesophyll cells? |
| A. | OAA |
| B. | PEP carboxylase |
| C. | PEPcase |
| D. | RuBisCO |
| Answer» E. | |
| 9. |
Which of these is the primary carbon dioxide acceptor in the Hatch and Slack pathway? |
| A. | PEP |
| B. | PGA |
| C. | OAA |
| D. | PEPcase |
| Answer» B. PGA | |
| 10. |
Which of these features cannot help us differentiate between C3 and C4 plants? |
| A. | Presence of Kranz anatomy |
| B. | Presence of photorespiration |
| C. | Presence of chloroplasts |
| D. | Presence of bundle sheath |
| Answer» D. Presence of bundle sheath | |
| 11. |
Which of these is a C4 plant? |
| A. | Wheat |
| B. | Maize |
| C. | Rice |
| D. | Cotton |
| Answer» C. Rice | |
| 12. |
Which of the following is false regarding the bundle sheaths of plants showing Kranz anatomy? |
| A. | They lack chloroplasts |
| B. | They are layered around the vascular bundles |
| C. | They have thick walls |
| D. | They lack intercellular spaces |
| Answer» B. They are layered around the vascular bundles | |
| 13. |
What is the arrangement of cells in plants showing Kranz anatomy? |
| A. | Tapered |
| B. | Irregular |
| C. | Wreath |
| D. | Triangular |
| Answer» D. Triangular | |
| 14. |
What is the special leaf anatomy in C4 plants known as? |
| A. | Mesophyll anatomy |
| B. | Vascular anatomy |
| C. | Kranz anatomy |
| D. | Calvin anatomy |
| Answer» D. Calvin anatomy | |
| 15. |
Which of these is not a characteristic of C4 plants? |
| A. | Toleration of higher temperatures |
| B. | Response to high light intensities |
| C. | Greater productivity of biomass |
| D. | Photorespiration |
| Answer» E. | |