Q1. What is the main function of phloem in vascular plants?A. Transport of waterB. Transport of organic nutrientsC. Mechanical supportD. Prevention of transpiration
Q2. Which layer in dicot roots lies between the epidermis and the vascular bundle?A. EndodermisB. PericycleC. CortexD. Pith
Q3. Which vascular tissue component provides structural support in plants?A. Sieve tubesB. Companion cellsC. TracheidsD. Parenchyma
Q4. Which of the following statements about endodermis in roots is correct?A. Endodermis is the outermost layer of the root.B. Endodermis cells contain Casparian strips.C. Endodermis is made up of dead cells.D. Endodermis stores starch in monocot roots.
Q5. Which part of a plant is composed mainly of simple tissues?A. EpidermisB. Vascular bundlesC. Ground tissueD. Pericycle
Q6. Which of the following structures is unique to monocot leaves?A. Palisade mesophyllB. Spongy mesophyllC. Bulliform cellsD. Bundle sheath cells
Q7. Which of the following statements about the cortex in roots is correct?A. The cortex is composed of lignified dead cells.B. The cortex helps in water and nutrient storage.C. The cortex contains vascular bundles.D. The cortex is the innermost layer of the root.
Q8. Which of the following statements about stomatal apparatus is correct?A. Stomatal pores are surrounded by specialized guard cells.B. Guard cells do not contain chloroplasts.C. Subsidiary cells are always absent in the stomatal complex.D. Stomata are present only in stems and absent in leaves.
Q9. Which of the following statements about pericycle in roots is correct?A. The pericycle is the innermost layer of the cortex.B. The pericycle gives rise to lateral roots.C. The pericycle is absent in dicot roots.D. The pericycle is made up of xylem and phloem tissues.
Q10. Which layer in the dicot root prevents water loss and has casparian strips?A. CortexB. PericycleC. EndodermisD. Epidermis