Phloem Practice Questions
20 free Phloem practice questions for the Botany, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.
Questions
20 questions
All Phloem questions
- Q1. What is the primary transport function of phloem in vascular plants?
- Q2. Which of the following is the main conducting element of phloem in angiosperms?
- Q3. Which cells are closely associated with sieve tube elements in angiosperm phloem?
- Q4. Why do mature sieve tube elements depend on companion cells?
- Q5. What are sieve plates in phloem?
- Q6. Which sugar is most commonly transported through phloem in many plants?
- Q7. Which term describes a plant region that supplies sugars to the phloem?
- Q8. Which of the following is an example of a phloem sink?
- Q9. According to the pressure-flow hypothesis, what creates pressure in the phloem near a source?
- Q10. In the pressure-flow model, what happens at a sink region?
- Q11. Which statement best describes the direction of phloem transport?
- Q12. Which phloem cells mainly provide mechanical support?
- Q13. Which phloem component commonly stores food and assists in lateral transport?
- Q14. Which of the following is generally absent in the phloem of many monocot stems?
- Q15. What is primary phloem?
- Q16. What is secondary phloem?
- Q17. In a typical collateral vascular bundle of a stem, where is phloem located relative to xylem?
- Q18. Which structure forms in sieve tube pores when phloem is injured and helps seal the damaged area?
- Q19. Which comparison between xylem and phloem is correct?
- Q20. Which statement best explains why phloem transport is considered an energy-dependent process?